Consolidated Statement Of Income
| Concept | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||||||||||
| Statement of income | ||||||||||||||||
| Net sales | 
                                                22,543,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,390,911,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,697,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,321,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,306,578,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,376,229,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,157,795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,689,769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,758,501,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,138,103,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,082,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,270,116,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,232,915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,037,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,291,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,979,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||||||||
| Selling, general and administrative expenses | — | — | — | 
                                                10,886,427,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                10,701,511,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating expenses | ||||||||||||||||
| Cost of sales | — | — | — | 
                                                14,894,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                14,932,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating profit (loss) | 
                                                952,204,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,452,933,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,546,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,540,429,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,840,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                210,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                290,246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,025,108,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                270,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,775,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,401,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,403,290,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                76,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,324,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Gross profit (loss) | — | — | — | 
                                                12,426,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                12,104,802,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Ordinary profit (loss) | — | — | — | 
                                                1,624,282,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,492,036,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net sales | ||||||||||||||||
| Selling, general and administrative expenses | ||||||||||||||||
| Non-operating income | ||||||||||||||||
| Other | — | — | — | 
                                                27,095,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                52,148,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating income | — | — | — | 
                                                115,829,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                134,069,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cost of sales | ||||||||||||||||
| Extraordinary income | — | — | — | 
                                                869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                6,003,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Extraordinary losses | — | — | — | 
                                                1,487,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                14,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other | — | — | — | 
                                                18,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                5,116,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating expenses | — | — | — | 
                                                31,976,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                45,323,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest expenses | — | — | — | 
                                                20,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                25,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating expenses | ||||||||||||||||
| Other | — | — | — | 
                                                11,355,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                20,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) before income taxes | — | — | — | 
                                                1,623,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,483,387,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Gross profit | ||||||||||||||||
| Extraordinary income | ||||||||||||||||
| Gain on sale of non-current assets | — | — | — | 
                                                869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                5,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Extraordinary losses | ||||||||||||||||
| Loss on retirement of non-current assets | — | — | — | 
                                                1,469,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes | — | — | — | 
                                                531,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                467,442,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) | — | — | — | 
                                                1,091,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,015,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) attributable to non-controlling interests | — | — | — | 
                                                31,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                43,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | 
                                                1,060,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                972,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | ||||||||||||||||
| Valuation difference on available-for-sale securities | — | — | — | 
                                                5,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                4,475,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | — | — | 
                                                2,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | — | — | 
                                                7,551,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                6,820,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit attributable to | ||||||||||||||||
| Comprehensive income | — | — | — | 
                                                1,099,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,022,764,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | 
                                                1,067,938,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                979,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | 
                                                31,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                43,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |