| Mar 31,
2014 | Mar 31,
2015 | Mar 31,
2016 | Mar 31,
2017 | Mar 31,
2018 | Mar 31,
2019 | Mar 31,
2020 | Mar 31,
2021 | Mar 31,
2022 | Mar 31,
2023 | Mar 31,
2024 |
|---|
| Profit (loss) before income taxes | 1,051 | 479 | 801 | 1,296 | 1,855 | 1,551 | 491 | 1,539 | 1,448 | -58 | 2,081 |
|---|
| Depreciation | 1,540 | 1,561 | 1,784 | 1,907 | 1,973 | 2,274 | 2,653 | 2,722 | 2,764 | 2,585 | 2,767 |
|---|
| Amortization of goodwill | - | - | - | 29 | 175 | 153 | 116 | 116 | 65 | 119 | 64 |
|---|
| Impairment losses | 2 | 14 | 2 | 0 | 308 | 197 | 86 | 227 | 1 | 425 | 7 |
|---|
| Increase (decrease) in allowance for doubtful accounts | 26 | 2 | -42 | 44 | -15 | 46 | -54 | 5 | 91 | -32 | -23 |
|---|
| Increase (decrease) in retirement benefit liability | 1,041 | 76 | 101 | 115 | 131 | 158 | 124 | 128 | -3 | -18 | 37 |
|---|
| Increase (decrease) in provision for bonuses | 67 | -4 | 39 | 81 | 44 | 27 | 6 | -115 | -47 | 71 | 62 |
|---|
| Increase (decrease) in provision for product warranties | 0 | -4 | 0 | 7 | -4 | 4 | 1 | -13 | 6 | 18 | 16 |
|---|
| Increase (decrease) in provision for retirement benefits for directors (and other officers) | 13 | -7 | 9 | -0 | 22 | -15 | 11 | 13 | 15 | -119 | - |
|---|
| Interest and dividend income | -7 | -6 | -8 | -29 | -46 | -58 | -30 | -11 | -11 | -11 | -13 |
|---|
| Insurance claim income | - | - | - | - | - | -6 | -73 | -31 | -11 | -0 | -14 |
|---|
| Subsidiary director's retirement benefits | - | - | - | - | - | - | - | - | - | 64 | - |
|---|
| Building demolition expenses | - | - | - | - | - | - | - | - | - | 93 | - |
|---|
| Interest expenses | 128 | 119 | 112 | 107 | 117 | 148 | 162 | 169 | 172 | 180 | 213 |
|---|
| Share issuance costs | - | - | - | - | - | - | - | - | - | - | 21 |
|---|
| Loss (gain) on sale of investment securities | -79 | -19 | -2 | - | - | - | -14 | -2 | -132 | - | -92 |
|---|
| Loss (gain) on valuation of investment securities | - | - | - | 9 | 2 | 11 | - | 3 | 66 | 22 | 2 |
|---|
| Loss on valuation of shares of subsidiaries and associates | - | - | - | - | - | 5 | - | 71 | 51 | - | 36 |
|---|
| Loss (gain) on sale of non-current assets | - | - | -5 | 19 | -7 | - | - | - | -0 | -0 | -0 |
|---|
| Loss on retirement of non-current assets | 3 | - | 38 | 40 | 0 | 6 | 14 | 3 | 5 | 7 | 26 |
|---|
| Loss on tax purpose reduction entry of non-current assets | - | - | - | - | - | - | - | - | - | 1 | - |
|---|
| Subsidy income | - | - | - | - | - | - | - | - | - | -1 | - |
|---|
| Decrease (increase) in trade receivables | -1,314 | 583 | -271 | -199 | -509 | -219 | -273 | 615 | 115 | 218 | -82 |
|---|
| Decrease (increase) in inventories | -905 | -745 | 883 | -339 | -386 | -2,270 | -591 | 321 | -244 | 501 | 664 |
|---|
| Decrease (increase) in advance payments to suppliers | 387 | 33 | - | - | 0 | -1,186 | 1,185 | -1 | -155 | 155 | -47 |
|---|
| Decrease (increase) in accounts receivable - other | -49 | -25 | -7 | -41 | -381 | 90 | -115 | 9 | 5 | -92 | 117 |
|---|
| Increase (decrease) in accounts payable - other | 212 | -154 | 137 | 267 | 363 | -216 | 283 | -354 | -193 | -471 | 519 |
|---|
| Increase (decrease) in trade payables | 294 | -465 | 192 | -17 | -64 | -132 | -99 | -179 | -38 | 90 | 46 |
|---|
| Increase (decrease) in accrued consumption taxes | - | - | 561 | -646 | 232 | 137 | 208 | -154 | -94 | 153 | -299 |
|---|
| Other, net | 247 | -262 | 602 | -48 | -236 | 152 | -8 | -103 | 231 | 132 | 81 |
|---|
| Subtotal | 1,707 | 1,176 | 4,365 | 2,601 | 3,573 | 880 | 4,598 | 4,408 | 3,815 | 4,032 | 6,188 |
|---|
| Interest and dividends received | 7 | 6 | 8 | 29 | 46 | 11 | 14 | 11 | 11 | 11 | 13 |
|---|
| Interest paid | -129 | -120 | -112 | -107 | -116 | -145 | -166 | -169 | -172 | -179 | -213 |
|---|
| Payments of subsidiary director's retirement benefits | - | - | - | - | - | - | - | - | - | -64 | - |
|---|
| Subsidies received | - | - | - | - | - | - | - | - | - | 1 | - |
|---|
| Proceeds from insurance income | - | - | - | - | - | - | 71 | 23 | 11 | 0 | 14 |
|---|
| Income taxes paid | -184 | -216 | -64 | -368 | -550 | -921 | -644 | -519 | -374 | -454 | -75 |
|---|
| Income taxes refund | 10 | 8 | 21 | 4 | 60 | 5 | 23 | 34 | - | 0 | 96 |
|---|
| Net cash provided by (used in) operating activities | 1,410 | 854 | 4,217 | 2,159 | 3,013 | -170 | 3,897 | 3,690 | 3,266 | 3,347 | 6,023 |
|---|
| Payments into time deposits | - | - | -302 | - | - | - | - | - | - | - | -37 |
|---|
| Proceeds from cancellation of insurance funds | - | - | - | 13 | - | 5 | 3 | 7 | 7 | 23 | 3 |
|---|
| Purchase of property, plant and equipment | -1,763 | -2,584 | -719 | -2,858 | -3,791 | -1,513 | -2,269 | -2,146 | -1,097 | -447 | -3,807 |
|---|
| Proceeds from sale of property, plant and equipment | - | - | 5 | 4 | 15 | - | - | - | 0 | 0 | - |
|---|
| Purchase of intangible assets | - | - | - | - | - | - | -335 | -29 | -20 | -20 | -25 |
|---|
| Purchase of investment securities | -21 | -1 | -1 | -135 | -193 | -12 | -73 | -1 | -1 | -16 | -3 |
|---|
| Proceeds from sale of investment securities | 109 | 41 | 14 | - | - | - | 39 | 5 | 141 | - | 105 |
|---|
| Loan advances | -5 | -30 | -79 | -252 | -96 | -489 | -165 | -42 | -18 | -19 | -1 |
|---|
| Proceeds from collection of loans receivable | 45 | 8 | 5 | 8 | 27 | 9 | 14 | 5 | 45 | 6 | 5 |
|---|
| Payments of leasehold and guarantee deposits | -3 | -2 | -4 | -28 | -27 | -4 | -7 | -55 | -166 | -9 | -6 |
|---|
| Proceeds from refund of leasehold and guarantee deposits | 150 | 5 | 6 | 25 | 24 | 5 | 25 | 3 | 28 | 28 | 14 |
|---|
| Payments for asset retirement obligations | - | - | - | -53 | - | - | - | - | - | -41 | - |
|---|
| Payments for demolition of property, plant and equipment | - | - | - | - | - | - | - | - | - | -93 | - |
|---|
| Proceeds from sale of businesses | - | - | - | - | - | 5 | - | 599 | 592 | 150 | - |
|---|
| Purchase of shares of subsidiaries and associates | - | - | - | - | - | -134 | - | -5 | - | - | -10 |
|---|
| Other, net | -9 | -20 | -17 | -196 | -75 | -114 | 1 | 2 | 2 | -4 | -0 |
|---|
| Net cash provided by (used in) investing activities | -1,497 | -2,583 | -811 | -4,644 | -5,313 | -1,895 | -2,650 | -1,663 | -882 | -441 | -3,764 |
|---|
| Net increase (decrease) in short-term borrowings | 620 | 530 | -423 | 2,997 | 1,317 | 4,296 | 1,385 | -2,671 | -219 | 1,089 | 995 |
|---|
| Proceeds from long-term borrowings | 1,150 | 2,950 | 1,200 | 2,610 | 4,000 | 2,105 | 2,550 | 5,654 | 1,042 | 504 | 1,878 |
|---|
| Repayments of long-term borrowings | -1,378 | -1,668 | -2,029 | -2,119 | -1,866 | -2,286 | -2,596 | -3,386 | -1,971 | -2,262 | -2,183 |
|---|
| Proceeds from issuance of shares | - | - | - | - | - | - | - | - | - | - | 3,361 |
|---|
| Dividends paid | -154 | -213 | -192 | -189 | -230 | -230 | -300 | -300 | -300 | -300 | -300 |
|---|
| Purchase of treasury shares | -0 | - | -260 | -0 | -0 | -0 | -0 | - | -0 | -0 | -0 |
|---|
| Proceeds from share issuance to non-controlling shareholders | - | - | - | - | - | - | - | - | 20 | 96 | - |
|---|
| Purchase of shares of subsidiaries not resulting in change in scope of consolidation | - | - | - | - | - | -108 | -353 | -39 | - | - | -20 |
|---|
| Repayments of lease liabilities | -638 | -705 | -845 | -977 | -1,044 | -819 | -960 | -985 | -995 | -946 | -1,086 |
|---|
| Net cash provided by (used in) financing activities | 937 | 893 | -2,548 | 2,322 | 2,178 | 2,958 | -274 | -1,727 | -2,423 | -1,819 | 2,644 |
|---|
| Effect of exchange rate change on cash and cash equivalents | 4 | -32 | 16 | 12 | -14 | -78 | 39 | 10 | -39 | -26 | 11 |
|---|
| Net increase (decrease) in cash and cash equivalents | 854 | -868 | 873 | -151 | -136 | 814 | 1,013 | 310 | -77 | 1,061 | 4,914 |
|---|