Quarter Period Consolidated Statement Of Comprehensive Income
| Concept | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Quarter period consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                1,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,854,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,854,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,854,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,854,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | 
                                                789,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                20,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | — | 
                                                -6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | — | 
                                                132,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -29,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans, net of tax | — | 
                                                86,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | — | 
                                                1,002,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -105,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income | — | 
                                                2,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                1,765,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                2,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                1,765,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |