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 | 
|---|---|---|---|---|---|
| Statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                102,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,506,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                489,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -60,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -30,142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -33,880,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from operating activities | |||||
| Net cash provided by (used in) operating activities | — | 
                                                81,472,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,506,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from operating activities | |||||
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -8,834,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -13,209,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                1,624,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                735,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -20,792,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -22,760,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Loan advances | — | 
                                                -320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of investment securities | — | 
                                                186,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,726,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -742,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -809,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from collection of loans receivable | — | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from facilities maintenance and investing activities | |||||
| Cash flows from financing activities | |||||
| Purchase of treasury shares | — | 
                                                -30,953,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,689,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -16,831,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -13,252,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -18,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -66,662,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,273,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -5,970,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,495,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                111,750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                117,720,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,224,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |