Semi-Annual Consolidated Statement Of Cash Flows
| Concept | As at 2020-03-31 | 2019-04-01 to 2020-03-31 | 2019-04-01 to 2020-03-31 | As at 2019-03-31 | 2018-04-01 to 2019-03-31 | 2018-04-01 to 2019-03-31 | As at 2018-03-31 | 
|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | — | 
                                                1,506,362,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,319,987,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,629,914,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,338,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                2,121,804,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,000,056,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Impairment losses | — | — | 
                                                431,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                344,733,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in allowance for doubtful accounts | — | — | 
                                                -1,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividend income | — | — | 
                                                -146,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -116,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | — | — | 
                                                27,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                45,768,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Foreign exchange losses (gains) | — | — | 
                                                46,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -32,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | — | — | 
                                                145,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -94,113,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | — | 
                                                102,674,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -239,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | — | — | 
                                                -304,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                293,567,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | — | 
                                                53,869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -340,163,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | — | 
                                                3,606,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,100,859,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | — | — | 
                                                146,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                115,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | — | 
                                                -27,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -45,768,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | — | 
                                                -595,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -652,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                3,130,544,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,517,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | |||||||
| Purchase of investment securities | — | — | 
                                                -17,316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -694,689,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from sale of investment securities | — | — | 
                                                82,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                19,094,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | — | 
                                                -11,915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -95,696,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | — | 
                                                -2,182,242,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -4,117,416,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | |||||||
| Proceeds from short-term borrowings | — | — | 
                                                650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of short-term borrowings | — | — | 
                                                -1,855,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from long-term borrowings | — | — | 
                                                1,500,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of long-term borrowings | — | — | 
                                                -554,780,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of treasury shares | — | — | 
                                                -38,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | — | — | 
                                                -339,906,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -359,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                -758,948,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -548,401,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid to non-controlling interests | — | — | 
                                                -98,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -77,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | — | 
                                                -60,492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | — | — | 
                                                -117,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -107,543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                72,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,255,401,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                8,342,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                8,270,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,525,544,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |