Notes - Inventories
| Concept | As at 2024-09-30 | As at 2024-03-31 | As at 2023-03-31 | As at 2022-03-31 | 
|---|---|---|---|---|
| Notes - Inventories | ||||
| Components of inventories | ||||
| Merchandise and finished goods | — | 
                                                9,841,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,175,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | — | 
                                                724,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,838,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,717,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | — | 
                                                1,068,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,842,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Inventories | 
                                                11,410,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,633,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,474,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,734,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |