Semi-Annual Consolidated Statement Of Cash Flows
| Concept | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | 
                                                37,685,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                196,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,838,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                24,035,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                148,659,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                142,315,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Amortization of goodwill | — | — | 
                                                2,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,116,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in allowance for doubtful accounts | — | — | 
                                                3,855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividend income | — | — | 
                                                -6,020,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,605,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest expenses | — | — | 
                                                23,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,324,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Foreign exchange losses (gains) | — | — | 
                                                -5,063,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,268,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in retirement benefit liability | — | — | 
                                                1,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in trade receivables | — | — | 
                                                -29,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -33,419,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in trade payables | — | — | 
                                                -825,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,539,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -10,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,111,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | — | 
                                                395,896,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                442,121,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividends received | — | — | 
                                                5,762,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest paid | — | — | 
                                                -23,061,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -23,419,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                373,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                420,622,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of securities | — | — | 
                                                -1,392,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -528,209,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of property, plant and equipment | — | — | 
                                                -216,859,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -202,066,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of property, plant and equipment | — | — | 
                                                17,555,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of investment securities | — | — | 
                                                -2,167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,534,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of investment securities | — | — | 
                                                487,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Loan advances | — | — | 
                                                -5,603,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -919,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,795,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | — | 
                                                -343,656,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -399,525,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from financing activities | |||||||
| Proceeds from long-term borrowings | — | — | 
                                                15,786,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Redemption of bonds | — | — | 
                                                -70,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -30,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Repayments of long-term borrowings | — | — | 
                                                -74,295,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -84,633,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Dividends paid | — | — | 
                                                -23,521,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                -170,154,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -136,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of shares of subsidiaries not resulting in change in scope of consolidation | — | — | 
                                                -11,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -973,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | — | 
                                                982,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,979,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                -139,794,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -110,969,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | 
                                                862,718,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,002,512,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,113,481,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |