| Mar 31,
2013 | 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 | 444 | 430 | 391 | 115 | 509 | 705 | 301 | 439 | 592 | 569 | 138 | 385 |
|---|
| Depreciation | 262 | 296 | 343 | 376 | 335 | 318 | 328 | 334 | 318 | 331 | 341 | 364 |
|---|
| Increase (decrease) in allowance for doubtful accounts | -2 | 14 | -49 | 5 | -7 | -26 | -1 | -4 | -4 | 48 | -14 | -1 |
|---|
| Increase (decrease) in provision for bonuses | 52 | 47 | -169 | 105 | 0 | -33 | -91 | 38 | 153 | -120 | -86 | 9 |
|---|
| Increase (decrease) in provision for retirement benefits for directors (and other officers) | 17 | 12 | 12 | -97 | 13 | -4 | 12 | -9 | 10 | -4 | 6 | -20 |
|---|
| Increase (decrease) in retirement benefit liability | - | -1 | 7 | 5 | 1 | -2 | 6 | 6 | 4 | -1 | 12 | 5 |
|---|
| Remeasurements of defined benefit plans | - | - | 1 | 2 | 5 | 2 | 2 | 3 | 2 | -1 | -1 | -4 |
|---|
| Increase (decrease) in provision for share awards | - | - | - | - | - | - | 15 | 33 | 18 | 18 | 18 | 13 |
|---|
| Increase (decrease) in provision for claims expenses-OpeCF | - | - | - | - | 2 | -2 | - | - | - | - | - | 14 |
|---|
| Increase (decrease) in provision for environmental measures | - | - | - | - | - | - | - | - | - | - | 40 | -6 |
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| Interest and dividend income | -7 | -8 | -8 | -8 | -10 | -11 | -12 | -12 | -13 | -11 | -11 | -13 |
|---|
| Insurance claim income | - | - | -21 | -5 | - | -1 | -4 | -7 | -0 | -3 | -5 | -0 |
|---|
| Collaborative investigation income | - | - | - | - | - | - | - | - | - | - | -10 | - |
|---|
| Interest expenses | 6 | 6 | 12 | 12 | 10 | 9 | 7 | 5 | 3 | 2 | 2 | 1 |
|---|
| Accident related loss | - | - | - | - | - | - | - | - | - | - | 12 | 3 |
|---|
| Foreign exchange losses (gains) | -6 | -1 | -12 | 9 | -0 | -2 | -2 | 0 | -0 | -0 | -0 | - |
|---|
| Loss (gain) on sale of non-current assets | -0 | 11 | -55 | 6 | -0 | -0 | -1 | -0 | -0 | -0 | -0 | -1 |
|---|
| Loss (gain) on sale of investment securities | - | - | - | -6 | - | -0 | - | - | - | -123 | - | -29 |
|---|
| Loss on retirement of non-current assets | 3 | 27 | 1 | 2 | 0 | 1 | 0 | 1 | 0 | 2 | 2 | 1 |
|---|
| Loss on cancellation of leases | 3 | - | 1 | 1 | - | - | - | 1 | - | - | - | 2 |
|---|
| Decrease (increase) in trade receivables | 141 | -252 | 636 | -573 | 626 | -159 | 306 | -67 | 195 | 465 | -49 | -508 |
|---|
| Decrease (increase) in inventories | -89 | -94 | 87 | 62 | -117 | 139 | -77 | -54 | -326 | -214 | -111 | -168 |
|---|
| Increase (decrease) in trade payables | 91 | 264 | -382 | 105 | -263 | 201 | -194 | -0 | 130 | 92 | 98 | 406 |
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| Other, net | -4 | -22 | -28 | 214 | -100 | 12 | -45 | 89 | 87 | -121 | -18 | 94 |
|---|
| Subtotal | 865 | 744 | 812 | 481 | 1,116 | 1,038 | 533 | 791 | 1,303 | 867 | 364 | 547 |
|---|
| Interest and dividends received | 7 | 8 | 8 | 8 | 10 | 11 | 12 | 12 | 13 | 11 | 11 | 13 |
|---|
| Interest paid | -7 | -7 | -13 | -12 | -10 | -9 | -7 | -5 | -3 | -2 | -2 | -1 |
|---|
| Income taxes paid | -161 | -145 | -240 | -92 | -156 | -171 | -42 | -87 | -100 | -184 | -103 | -51 |
|---|
| Proceeds from insurance income | - | - | 21 | 5 | - | 1 | 4 | 7 | 0 | 3 | 5 | 0 |
|---|
| Collaborative investigation income received | - | - | - | - | - | - | - | - | - | - | 10 | - |
|---|
| Accident related loss payment amount | - | - | - | - | - | - | - | - | - | - | -1 | -14 |
|---|
| Net cash provided by (used in) operating activities | 705 | 600 | 588 | 390 | 959 | 870 | 500 | 718 | 1,213 | 695 | 283 | 494 |
|---|
| Purchase of property, plant and equipment | -107 | -131 | -696 | -554 | -138 | -445 | -218 | -305 | -120 | -201 | -150 | -634 |
|---|
| Proceeds from sale of property, plant and equipment | 1 | 3 | 2 | 149 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
|---|
| Purchase of intangible assets | -38 | -61 | -66 | -66 | -77 | -74 | -57 | -97 | -169 | -181 | -202 | -61 |
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| Purchase of investment securities | -21 | -5 | -5 | -5 | -4 | -1 | - | - | - | - | - | -0 |
|---|
| Proceeds from sale of investment securities | - | - | - | 7 | - | 0 | - | - | - | 231 | - | 46 |
|---|
| Decrease (increase) in investments and other assets | 0 | 1 | 2 | 2 | 3 | 1 | -0 | -1 | -0 | - | 0 | -3 |
|---|
| Net cash provided by (used in) investing activities | -34 | -220 | -679 | -467 | -213 | -520 | -275 | -403 | -289 | -150 | -351 | -651 |
|---|
| Proceeds from short-term borrowings | 200 | 200 | 200 | 200 | 200 | 200 | 100 | 100 | 100 | 100 | 100 | 100 |
|---|
| Repayments of short-term borrowings | -200 | -200 | -200 | -200 | -200 | -200 | -200 | -100 | -100 | -100 | -100 | -100 |
|---|
| Repayments of long-term borrowings | -143 | -176 | -127 | -146 | -146 | -146 | -146 | -146 | -112 | -64 | -60 | -60 |
|---|
| Dividends paid | -84 | -84 | -93 | -96 | -96 | -97 | -96 | -96 | -98 | -83 | -95 | -94 |
|---|
| Repayments of finance lease liabilities | -40 | -38 | -36 | -33 | -35 | -37 | -37 | -42 | -41 | -34 | -31 | -29 |
|---|
| Net cash provided by (used in) financing activities | -267 | -696 | 444 | -275 | -277 | -279 | -379 | -284 | -857 | -181 | -185 | -183 |
|---|
| Effect of exchange rate change on cash and cash equivalents | 15 | 25 | 30 | -15 | -1 | -2 | 2 | -0 | 0 | 0 | 0 | - |
|---|
| Net increase (decrease) in cash and cash equivalents | 418 | -291 | 383 | -366 | 468 | 69 | -152 | 31 | 67 | 364 | -253 | -341 |
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