Consolidated 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 | 
|---|---|---|---|---|---|
| Consolidated statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                6,769,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                373,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                356,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                4,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,375,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -6,146,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,822,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                -4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -5,694,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,779,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of investment securities | — | 
                                                667,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                404,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Loan advances | — | 
                                                -4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from collection of loans receivable | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -368,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -453,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Dividends paid | — | 
                                                -590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -544,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from long-term borrowings | — | 
                                                2,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,500,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -6,240,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid to non-controlling interests | — | 
                                                -1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -618,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,658,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -1,021,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                -180,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -143,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -1,738,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                9,128,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,867,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |