| 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 | 1,467 | 1,618 | 1,899 | 2,323 | 2,606 | 2,264 | -982 | 1,464 | -62 | 295 | 891 | 1,285 |
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| Depreciation | 1,783 | 1,763 | 1,767 | 1,753 | 1,761 | 1,656 | 1,641 | 1,651 | 1,903 | 1,871 | 1,820 | 1,842 |
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| Amortization of long-term prepaid expenses | 30 | 24 | 25 | 36 | 34 | 41 | 43 | 30 | 30 | 30 | 25 | 37 |
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| Increase (decrease) in retirement benefit liability | - | 265 | 43 | -82 | 310 | 264 | 180 | -50 | 134 | -18 | 36 | -118 |
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| Increase (decrease) in provision for retirement benefits for directors (and other officers) | -3 | -6 | 7 | -52 | -18 | -6 | 9 | - | 1 | -5 | -8 | 11 |
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| Loss (gain) on sale of businesses | - | - | - | - | - | - | - | - | - | - | - | -300 |
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| Increase (decrease) in provision for repairs | -5 | 24 | -106 | 6 | 23 | 7 | 86 | -196 | 3 | 22 | 18 | 12 |
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| Increase (decrease) in allowance for doubtful accounts | -197 | -2 | -95 | -36 | - | -32 | 32 | 41 | -60 | -10 | -5 | 99 |
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| Increase (decrease) in provision for bonuses | -18 | -25 | -4 | 18 | 13 | 21 | 5 | 6 | -40 | - | 21 | 31 |
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| Interest and dividend income | -23 | -19 | -25 | -27 | -24 | -23 | -22 | -26 | -31 | -30 | -29 | -35 |
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| Interest expenses | 552 | 502 | 453 | 390 | 322 | 274 | 247 | 246 | 240 | 223 | 215 | 219 |
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| Foreign exchange losses (gains) | -127 | -109 | -134 | 54 | 34 | 4 | -7 | 12 | -6 | -2 | -13 | -24 |
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| Impairment losses | - | - | - | 120 | 19 | - | 2,877 | 32 | 1,038 | - | 70 | 136 |
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| Insurance claim income | - | - | - | - | - | - | - | - | - | -54 | -834 | -132 |
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| Loss on fire | - | - | - | - | - | - | - | - | - | 784 | 43 | - |
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| Loss on disaster | - | - | - | - | - | - | - | - | - | - | 43 | 7 |
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| Loss (gain) on sale of shares of subsidiaries | - | - | - | - | - | - | - | - | - | - | 1,193 | 89 |
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| Loss (gain) on sale of non-current assets | -2 | 9 | -11 | -1 | - | - | 19 | -1 | - | -2 | 99 | 74 |
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| Loss on tax purpose reduction entry of non-current assets | - | - | 83 | 81 | - | - | - | - | - | - | 8 | 10 |
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| Loss on retirement of non-current assets | - | - | - | - | - | - | - | - | - | 4 | 18 | 29 |
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| Incrase (decrease) in consumption taxes receivable payable | - | - | - | - | - | - | - | - | - | - | - | 317 |
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| Loss (gain) on sale of investment securities | 23 | - | 14 | -15 | -3 | -1 | - | -1 | -4 | 7 | -409 | - |
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| Loss (gain) on valuation of investment securities | 17 | - | 19 | 1 | 6 | - | - | 8 | 35 | 2 | - | 29 |
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| Decrease (increase) in trade receivables | 1,090 | -573 | 290 | 209 | -51 | -448 | 228 | 2,007 | 732 | -614 | -183 | 126 |
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| Decrease (increase) in inventories | 724 | -258 | -502 | 1,161 | 197 | -439 | 186 | -424 | 24 | -502 | -1,188 | 548 |
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| Increase (decrease) in trade payables | -591 | 787 | -354 | -598 | -266 | 39 | -103 | -543 | -564 | 515 | 310 | -403 |
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| Other, net | -631 | -802 | 60 | -596 | -347 | -576 | -633 | -537 | -176 | 822 | -700 | -320 |
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| Subtotal | 4,673 | 3,437 | 3,374 | 4,704 | 4,696 | 3,129 | 3,699 | 3,795 | 3,127 | 3,340 | 1,441 | 3,575 |
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| Interest and dividends received | 57 | 39 | 42 | 34 | 26 | 45 | 201 | 5 | 11 | 7 | 4 | 23 |
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| Interest paid | -552 | -500 | -451 | -386 | -324 | -272 | -245 | -246 | -242 | -224 | -215 | -218 |
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| Income taxes refund (paid) | - | - | - | - | - | - | - | - | - | - | -575 | 88 |
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| Proceeds from insurance income | - | - | - | - | - | - | - | - | - | 54 | 777 | 194 |
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| Payments associated with disaster loss | - | - | - | - | - | - | - | - | - | - | -18 | -5 |
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| Amount payment of loss on fire | - | - | - | - | - | - | - | - | - | -91 | -300 | -109 |
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| Net cash provided by (used in) operating activities | 3,488 | 2,345 | 2,206 | 4,284 | 3,412 | 1,828 | 3,043 | 2,818 | 2,775 | 2,988 | 1,112 | 3,549 |
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| Purchase of property, plant and equipment | -685 | -1,425 | -1,578 | -1,421 | -880 | -975 | -1,967 | -2,556 | -2,328 | -568 | -1,171 | -2,794 |
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| Proceeds from sale of property, plant and equipment | 2 | 7 | 20 | 3 | 11 | 70 | 157 | 116 | - | 3 | 92 | 7 |
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| Purchase of investment securities | -5 | -5 | -27 | -5 | -5 | -6 | -5 | -8 | -9 | -8 | -37 | -94 |
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| Proceeds from sale of investment securities | 82 | 7 | 9 | 45 | 9 | 4 | - | 6 | 27 | 8 | 479 | 1 |
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| Short-term loan advances | - | - | - | - | - | - | - | - | - | - | - | -70 |
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| Long-term loan advances | - | - | - | - | - | - | - | - | - | - | - | -200 |
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| Proceeds from withdrawal of time deposits | 180 | 630 | 468 | 409 | 253 | 54 | 53 | 70 | 66 | 71 | 63 | 67 |
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| Payments into time deposits | -171 | -615 | -453 | -373 | -113 | -45 | -63 | -73 | -67 | -67 | -63 | -62 |
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| Proceeds from sale of businesses | - | - | - | - | - | - | - | - | - | - | - | 300 |
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| Proceeds from sale of shares of subsidiaries resulting in change in scope of consolidation | - | - | - | - | - | - | - | - | - | - | 235 | 324 |
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| Other, net | -17 | -25 | 16 | 14 | -26 | -16 | -58 | -165 | -32 | -93 | -280 | -180 |
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| Net cash provided by (used in) investing activities | -613 | -1,875 | -1,362 | -1,329 | -751 | -930 | -1,883 | -2,183 | -2,342 | -654 | -682 | -2,703 |
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| Net increase (decrease) in short-term borrowings | -2,129 | -1,469 | -568 | -669 | -201 | 428 | -1,200 | 478 | -378 | -1,371 | 1,079 | 1,283 |
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| Proceeds from long-term borrowings | 5,900 | 6,330 | 4,714 | 4,450 | 4,850 | 4,290 | 7,175 | 7,950 | 7,018 | 3,200 | 3,900 | 3,840 |
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| Repayments of long-term borrowings | -6,024 | -5,910 | -5,766 | -5,365 | -5,792 | -4,959 | -6,856 | -6,531 | -6,444 | -4,959 | -4,109 | -4,450 |
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| Proceeds from issuance of bonds | 1,200 | 2,200 | 1,500 | 1,200 | 1,200 | 1,100 | 1,900 | 2,254 | 1,284 | 1,369 | 588 | 784 |
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| Redemption of bonds | -652 | -800 | -1,070 | -1,080 | -1,200 | -1,250 | -1,310 | -2,260 | -1,300 | -1,380 | -1,350 | -1,190 |
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| Proceeds from issuance of share acquisition rights | - | - | - | - | - | - | - | - | - | - | - | 6 |
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| Purchase of treasury shares | -271 | -1 | - | -293 | -600 | -411 | - | - | - | - | - | -1 |
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| Dividends paid | -239 | -233 | -233 | -235 | -344 | -389 | -433 | -433 | -432 | -431 | -463 | -580 |
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| Other, net | -203 | -151 | -144 | -164 | -187 | -220 | -244 | -250 | -238 | -214 | -223 | -201 |
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| Net cash provided by (used in) financing activities | -2,444 | 621 | -1,591 | -2,183 | -2,305 | -1,439 | -992 | 1,185 | -509 | -3,791 | -579 | -509 |
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| Effect of exchange rate change on cash and cash equivalents | 25 | 117 | 103 | -37 | -67 | -4 | -28 | -14 | 2 | 93 | 63 | 44 |
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| Net increase (decrease) in cash and cash equivalents | 455 | 1,208 | -644 | 733 | 288 | -546 | 138 | 1,804 | -74 | -1,364 | -85 | 381 |
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