Quarterly Statement Of Cash Flows
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|
| Quarterly statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                78,809,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                1,226,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -453,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -15,834,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -23,636,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                63,748,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of securities | — | 
                                                -400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of property, plant and equipment | — | 
                                                -18,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -13,081,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                154,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                495,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                -9,033,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,887,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -2,002,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -736,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -17,741,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -32,817,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Proceeds from long-term borrowings | — | 
                                                7,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,159,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -7,042,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,802,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of treasury shares | — | 
                                                -7,865,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -34,585,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -17,169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,604,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -2,076,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,873,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -27,791,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -21,889,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                543,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                18,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                121,288,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                102,722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,306,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |