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Investment in Securities | 12 Months Ended
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Mar. 31, 2023
Investments Schedule [Abstract] |
Investment in Securities | 9. Investment in Securities Investment in securities as of March 31, 2022 and 2023 consists of the following:
|  | Millions of yen |
|  | 2022 |  |  | 2023 |
Equity securities * |  | ¥ | 560,643 |  |  | ¥ | 589,312 |
Trading debt securities |  |  | 2,503 |  |  |  | 2,179 |
Available-for-sale debt securities |  |  | 2,174,891 |  |  |  | 2,234,608 |
Held-to-maturity debt securities |  |  | 114,312 |  |  |  | 114,759 |
Total |  | ¥ | 2,852,349 |  |  | ¥ | 2,940,858 |
* | The amount of assets under management of variable annuity and variable life insurance contracts included in equity securities were ¥185,115 million and ¥151,445 million as of March 31, 2022 and 2023, respectively. The amount of investment funds that are accounted for under the equity method included in equity securities were ¥90,650 million and ¥90,993 million as of March 31, 2022 and 2023, respectively. The amount of investment funds and others elected the fair value option included in equity securities were ¥11,709 million and ¥16,032 million as of March 31, 2022 and 2023, respectively.
Gains and losses realized from the sale of equity securities and net unrealized holding gains (losses) on equity securities are included in gains on investment securities and dividends, life insurance premiums and related investment income, and write-downs of securities. For further information, see Note 22 “Gains on Investment Securities and Dividends” and Note 23 “Life Insurance Operations.” Net unrealized holding gains (losses) on equity securities held as of March 31, 2021, 2022 and 2023 were gains of ¥83,643 million, ¥26,075 million and ¥18,065 million for fiscal 2021, 2022 and 2023, respectively, which did not include net unrealized holding gains (losses) on both investment funds above mentioned. Equity securities include non-marketable equity securities and preferred equity securities, etc. elected for the measurement alternative. Upward or downward adjustments resulting from observable price changes are included in gains on investment securities and dividends and life insurance premiums and related investment income. Impairments are included in write-downs of securities. The following tables provide information about impairment and upward or downward adjustments resulting from observable price changes as of March 31, 2022 and 2023, and for fiscal 2022 and 2023.
|  | Millions of yen |
|  | March 31, 2022 |  |  | Fiscal Year ended March 31, 2022 |
|  | Carrying value |  |  | Accumulated impairments and downward adjustments |  |  | Accumulated upward adjustments |  |  | Impairments and downward adjustments |  |  | Upward adjustments |
Equity securities measured using the measurement alternative |  | ¥ | 58,723 |  |  | ¥ | (13,880 | ) |  | ¥ | 401 |  |  | ¥ | (208 | ) |  | ¥ | 163 |
|  | Millions of yen |
|  | March 31, 2023 |  |  | Fiscal Year ended March 31, 2023 |
|  | Carrying value |  |  | Accumulated impairments and downward adjustments |  |  | Accumulated upward adjustments |  |  | Impairments and downward adjustments |  |  | Upward adjustments |
Equity securities measured using the measurement alternative |  | ¥ | 67,820 |  |  | ¥ | (14,062 | ) |  | ¥ | 1,742 |  |  | ¥ | (787 | ) |  | ¥ | 1,360 |
Gains and losses realized from the sale of trading debt securities and net unrealized holding gains (losses) on trading debt securities are included in gains on investment securities and dividends. Net unrealized holding gains (losses) on trading debt securities held as of March 31, 2021, 2022 and 2023 were gains of ¥120 million, ¥213 million and losses of ¥469 million for fiscal 2021, 2022 and 2023, respectively. During fiscal 2021, 2022 and 2023, the Company and its subsidiaries sold available-for-sale debt securities for aggregate proceeds of ¥285,836 million, ¥239,250 million and ¥323,773 million, respectively, resulting in gross realized gains of ¥8,854 million, ¥6,493 million and ¥7,757 million, respectively, and gross realized losses of ¥1,918 million, ¥1,236 million and ¥8,367 million, respectively. The cost of the available-for-sale securities or the debt securities sold was based on the average cost of each issue of securities held at the time of the sale. Certain subsidiaries elected the fair value option for certain investments in investment funds, and others included in equity securities whose net asset values do not represent the fair value of investments due to the illiquid nature of these investments. The subsidiaries manage these investments on a fair value basis and the election of the fair value option enables the subsidiaries to reflect more appropriate assumptions to measure the fair value of these investments. As of March 31, 2022 and 2023, these investments were fair valued at ¥11,709 million and ¥16,032 million, respectively. A certain subsidiary elected the fair value option for investments in foreign government bond securities included in available-for-sale debt securities to mitigate volatility in the consolidated statements of income caused by the difference in recognition of gain or loss that would otherwise exist between the foreign government bond securities and the derivatives used to reduce the risks of fluctuations in market interest rates and exchange rates on these foreign government bond securities. There were no such investments as of March 31, 2022. As of March 31, 2023, these investments were fair valued at ¥237 million. A certain subsidiary elected the fair value option for investments in foreign corporate debt securities included in available-for-sale debt securities to mitigate volatility in the consolidated statements of income caused by the difference in recognition of gain or loss that would otherwise exist between the foreign corporate debt securities and the derivatives used to reduce the risks of fluctuations in market interest rates and exchange rates on these foreign corporate debt securities. As of March 31, 2022 and 2023, these investments were fair valued at ¥7,644 million and ¥6,605 million, respectively. The amortized cost basis amounts, gross unrealized holding gains, gross unrealized holding losses and fair values of available-for-sale debt securities and held-to-maturity debt securities in each major security type as of March 31, 2022 and 2023 are as follows: March 31, 2022
|  | Millions of yen |
|  | Amortized cost |  |  | Allowance for credit losses |  |  | Gross unrealized gains |  |  | Gross unrealized losses |  |  | Fair value |
Available-for-sale debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese and foreign government bond securities |  | ¥ | 905,004 |  |  | ¥ | 0 |  |  | ¥ | 5,178 |  |  | ¥ | (77,569 | ) |  | ¥ | 832,613 |
Japanese prefectural and foreign municipal bond securities |  |  | 333,449 |  |  |  | (132 | ) |  |  | 2,482 |  |  |  | (10,195 | ) |  |  | 325,604 |
Corporate debt securities |  |  | 873,178 |  |  |  | 0 |  |  |  | 10,014 |  |  |  | (33,632 | ) |  |  | 849,560 |
CMBS and RMBS in the Americas |  |  | 29,349 |  |  |  | 0 |  |  |  | 112 |  |  |  | (729 | ) |  |  | 28,732 |
Other asset-backed securities and debt securities |  |  | 135,445 |  |  |  | (21 | ) |  |  | 5,456 |  |  |  | (2,498 | ) |  |  | 138,382 |
|  |  | 2,276,425 |  |  |  | (153 | ) |  |  | 23,242 |  |  |  | (124,623 | ) |  |  | 2,174,891 |
Held-to-maturity debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese government bond securities and other |  |  | 114,312 |  |  |  | 0 |  |  |  | 21,129 |  |  |  | 0 |  |  |  | 135,441 |
|  | ¥ | 2,390,737 |  |  | ¥ | (153 | ) |  | ¥ | 44,371 |  |  | ¥ | (124,623 | ) |  | ¥ | 2,310,332 |
March 31, 2023
|  | Millions of yen |
|  | Amortized cost |  |  | Allowance for credit losses |  |  | Gross unrealized gains |  |  | Gross unrealized losses |  |  | Fair value |
Available-for-sale debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese and foreign government bond securities |  | ¥ | 962,969 |  |  | ¥ | 0 |  |  | ¥ | 2,863 |  |  | ¥ | (164,537 | ) |  | ¥ | 801,295 |
Japanese prefectural and foreign municipal bond securities |  |  | 389,150 |  |  |  | (144 | ) |  |  | 1,146 |  |  |  | (20,906 | ) |  |  | 369,246 |
Corporate debt securities |  |  | 851,525 |  |  |  | 0 |  |  |  | 6,270 |  |  |  | (73,407 | ) |  |  | 784,388 |
CMBS and RMBS in the Americas |  |  | 45,292 |  |  |  | 0 |  |  |  | 62 |  |  |  | (2,181 | ) |  |  | 43,173 |
Other asset-backed securities and debt securities |  |  | 239,922 |  |  |  | 0 |  |  |  | 5,735 |  |  |  | (9,151 | ) |  |  | 236,506 |
|  |  | 2,488,858 |  |  |  | (144 | ) |  |  | 16,076 |  |  |  | (270,182 | ) |  |  | 2,234,608 |
Held-to-maturity debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese government bond securities and other |  |  | 114,759 |  |  |  | 0 |  |  |  | 14,919 |  |  |  | 0 |  |  |  | 129,678 |
|  | ¥ | 2,603,617 |  |  | ¥ | (144 | ) |  | ¥ | 30,995 |  |  | ¥ | (270,182 | ) |  | ¥ | 2,364,286 |
The following table presents rollforwards of the allowance for credit losses for fiscal 2021, 2022 and 2023, respectively.
|  | Millions of yen |
|  | Fiscal Year ended March 31, 2021 |
|  | Foreign municipal bond securities |  |  | Total |
Beginning |  | ¥ | 0 |  |  | ¥ | 0 |
Additions to the allowance for credit losses on available-for-sale debt securities for which credit losses were not previously recorded* |  |  | 120 |  |  |  | 120 |
Ending |  | ¥ | 120 |  |  | ¥ | 120 |
* | An increase from the effects of changes in foreign exchange rates of ¥3 million was included in additions to the allowance for credit losses on available-for-sale debt securities for fiscal 2021.
|  | Millions of yen |
|  | Fiscal Year ended March 31, 2022 |
|  | Foreign municipal bond securities |  |  | Japanese other asset- backed securities and debt securities |  |  | Total |
Beginning |  | ¥ | 120 |  |  | ¥ | 0 |  |  | ¥ | 120 |
Additions to the allowance for credit losses on available-for-sale debt securities for which credit losses were not previously recorded |  |  | 0 |  |  |  | 21 |  |  |  | 21 |
Increase (Decrease) from the effects of changes in foreign exchange rates |  |  | 12 |  |  |  | 0 |  |  |  | 12 |
Ending |  | ¥ | 132 |  |  | ¥ | 21 |  |  | ¥ | 153 |
|  | Millions of yen |
|  | Fiscal Year ended March 31, 2023 |
|  | Foreign municipal bond securities |  |  | Japanese other asset- backed securities and debt securities |  |  | Total |
Beginning |  | ¥ | 132 |  |  | ¥ | 21 |  |  | ¥ | 153 |
Additional increases (decreases) to the allowance for credit losses on AFS debt securities that had an allowance recorded in a previous period, net |  |  | 0 |  |  |  | (21 | ) |  |  | (21 | )
Increase (Decrease) from the effects of changes in foreign exchange rates |  |  | 12 |  |  |  | 0 |  |  |  | 12 |
Ending |  | ¥ | 144 |  |  | ¥ | 0 |  |  | ¥ | 144 |
The following tables provide information about available-for-sale debt securities with gross unrealized losses (including allowance for credit losses) and the length of time that individual securities have been in a continuous unrealized loss position as of March 31, 2022 and 2023, respectively: March 31, 2022
|  | Millions of yen |
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |
|  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |
Available-for-sale debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese and foreign government bond securities |  | ¥ | 217,457 |  |  | ¥ | (16,117 | ) |  | ¥ | 521,633 |  |  | ¥ | (61,452 | ) |  | ¥ | 739,090 |  |  | ¥ | (77,569 | )
Japanese prefectural and foreign municipal bond securities |  |  | 190,081 |  |  |  | (6,509 | ) |  |  | 46,391 |  |  |  | (3,818 | ) |  |  | 236,472 |  |  |  | (10,327 | )
Corporate debt securities |  |  | 373,506 |  |  |  | (19,340 | ) |  |  | 156,687 |  |  |  | (14,292 | ) |  |  | 530,193 |  |  |  | (33,632 | )
CMBS and RMBS in the Americas |  |  | 6,458 |  |  |  | (98 | ) |  |  | 17,542 |  |  |  | (631 | ) |  |  | 24,000 |  |  |  | (729 | )
Other asset-backed securities and debt securities |  |  | 66,543 |  |  |  | (995 | ) |  |  | 37,432 |  |  |  | (1,524 | ) |  |  | 103,975 |  |  |  | (2,519 | )
|  | ¥ | 854,045 |  |  | ¥ | (43,059 | ) |  | ¥ | 779,685 |  |  | ¥ | (81,717 | ) |  | ¥ | 1,633,730 |  |  | ¥ | (124,776 | )
March 31, 2023
|  | Millions of yen |
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |
|  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |
Available-for-sale debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese and foreign government bond securities |  | ¥ | 2,588 |  |  | ¥ | (207 | ) |  | ¥ | 662,897 |  |  | ¥ | (164,330 | ) |  | ¥ | 665,485 |  |  | ¥ | (164,537 | )
Japanese prefectural and foreign municipal bond securities |  |  | 97,721 |  |  |  | (1,508 | ) |  |  | 194,280 |  |  |  | (19,542 | ) |  |  | 292,001 |  |  |  | (21,050 | )
Corporate debt securities |  |  | 191,669 |  |  |  | (6,570 | ) |  |  | 401,994 |  |  |  | (66,837 | ) |  |  | 593,663 |  |  |  | (73,407 | )
CMBS and RMBS in the Americas |  |  | 16,691 |  |  |  | (672 | ) |  |  | 23,653 |  |  |  | (1,509 | ) |  |  | 40,344 |  |  |  | (2,181 | )
Other asset-backed securities and debt securities |  |  | 63,958 |  |  |  | (2,300 | ) |  |  | 88,503 |  |  |  | (6,851 | ) |  |  | 152,461 |  |  |  | (9,151 | )
|  | ¥ | 372,627 |  |  | ¥ | (11,257 | ) |  | ¥ | 1,371,327 |  |  | ¥ | (259,069 | ) |  | ¥ | 1,743,954 |  |  | ¥ | (270,326 | )
The following table provides information about available-for-sale debt securities with gross unrealized losses for which allowance for credit losses were not recorded and the length of time that individual securities have been in a continuous unrealized loss position as of March 31, 2022 and 2023, respectively: March 31, 2022
|  | Millions of yen |
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |
|  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |
Available-for-sale debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese and foreign government bond securities |  | ¥ | 217,457 |  |  | ¥ | (16,117 | ) |  | ¥ | 521,633 |  |  | ¥ | (61,452 | ) |  | ¥ | 739,090 |  |  | ¥ | (77,569 | )
Japanese prefectural and foreign municipal bond securities |  |  | 190,081 |  |  |  | (6,509 | ) |  |  | 43,338 |  |  |  | (3,686 | ) |  |  | 233,419 |  |  |  | (10,195 | )
Corporate debt securities |  |  | 373,506 |  |  |  | (19,340 | ) |  |  | 156,687 |  |  |  | (14,292 | ) |  |  | 530,193 |  |  |  | (33,632 | )
CMBS and RMBS in the Americas |  |  | 6,458 |  |  |  | (98 | ) |  |  | 17,542 |  |  |  | (631 | ) |  |  | 24,000 |  |  |  | (729 | )
Other asset-backed securities and debt securities |  |  | 66,489 |  |  |  | (974 | ) |  |  | 37,432 |  |  |  | (1,524 | ) |  |  | 103,921 |  |  |  | (2,498 | )
|  | ¥ | 853,991 |  |  | ¥ | (43,038 | ) |  | ¥ | 776,632 |  |  | ¥ | (81,585 | ) |  | ¥ | 1,630,623 |  |  | ¥ | (124,623 | )
March 31, 2023
|  | Millions of yen |
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |
|  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |  |  | Fair value |  |  | Gross unrealized losses |
Available-for-sale debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Japanese and foreign government bond securities |  | ¥ | 2,588 |  |  | ¥ | (207 | ) |  | ¥ | 662,897 |  |  | ¥ | (164,330 | ) |  | ¥ | 665,485 |  |  | ¥ | (164,537 | )
Japanese prefectural and foreign municipal bond securities |  |  | 97,721 |  |  |  | (1,508 | ) |  |  | 190,805 |  |  |  | (19,398 | ) |  |  | 288,526 |  |  |  | (20,906 | )
Corporate debt securities |  |  | 191,669 |  |  |  | (6,570 | ) |  |  | 401,994 |  |  |  | (66,837 | ) |  |  | 593,663 |  |  |  | (73,407 | )
CMBS and RMBS in the Americas |  |  | 16,691 |  |  |  | (672 | ) |  |  | 23,653 |  |  |  | (1,509 | ) |  |  | 40,344 |  |  |  | (2,181 | )
Other asset-backed securities and debt securities |  |  | 63,958 |  |  |  | (2,300 | ) |  |  | 88,503 |  |  |  | (6,851 | ) |  |  | 152,461 |  |  |  | (9,151 | )
|  | ¥ | 372,627 |  |  | ¥ | (11,257 | ) |  | ¥ | 1,367,852 |  |  | ¥ | (258,925 | ) |  | ¥ | 1,740,479 |  |  | ¥ | (270,182 | )
The number of investment securities that were in an unrealized loss position as of March 31, 2022 and 2023 were 963 and 1,208, respectively. The gross unrealized losses on these debt securities are attributable to a number of factors including changes in interest rates, credit spreads and market trends. As of March 31, 2022 and 2023, the amount of accrued revenues on available-for-sale debt securities were ¥8,798 million and ¥10,781 million, respectively, which was included in other assets. The Company and its subsidiaries estimate credit losses and develop an allowance for credit losses for accrued interest receivables. There was no allowance for credit losses for accrued interest receivables as of March 31, 2023. For available-for-sale debt securities, if the fair value is less than the amortized cost, the debt securities are impaired. The Company and its subsidiaries identify per each impaired security whether the decline of fair value is due to credit losses component or non-credit losses component. Impairment related to credit losses is recognized in earning through an allowance for credit losses. Impairment related to other factors than credit losses is recognized in other comprehensive income (loss), net of applicable income taxes. In estimating an allowance of credit losses, the Company and its subsidiaries consider the existence of credit losses if the present value of estimated cash flows is less than the amortized cost basis. When the Company and its subsidiaries intend to sell the debt securities for which an allowance for credit losses is previously established or it is more likely than not that the Company and its subsidiaries will be required to sell the debt securities before recovery of the amortized cost basis, the allowance for credit losses is fully written-off and the amortized cost is reduced to the fair value after recognizing additional impairment in earnings. In addition, the Company and its subsidiaries recognize in earnings the full difference between the amortized cost and the fair value of the debt securities by direct write-down, without any allowance for credit losses, if the debt securities are expected to be sold and the fair value is less than the amortized cost. Credit losses related to available-for-sale debt securities recognized for fiscal 2021 were resulting from foreign municipal bond securities due to a decrease in the occupancy rate of the underlying assets. Credit losses related to available-for-sale debt securities recognized for fiscal 2022 were resulting from Japanese other asset-backed securities and debt securities due to deterioration in the financial condition of the credit guarantor of the underlying receivables. Reversals of credit losses related to available-for-sale debt securities recognized for fiscal 2023 resulted from the redemption of Japanese other asset-backed and debt securities, as of March 31, 2023. The evaluation of credit losses with available-for-sale debt securities is compared to the amortized cost of debt securities with the present value of cash flows estimated based on a number of overall conditions, including estimated fair value of the underlying receivables and the repayment priority of the securities. Because the Company and its subsidiaries do not intend to sell the debt security or it is more likely than not that the Company and its subsidiaries will be required to sell the debt security before recovery of its amortized cost basis, the Company and its subsidiaries recognized the allowance for credit losses. Unrealized losses on available-for-sale debt securities mainly result from changes in market interest rates and foreign exchange rates, and changes in risk premiums. In order to evaluate the recoverability of the available-for-sale debt securities, the Company and its subsidiaries utilize all available information such as issuer’s financial condition and business outlook. The fair value of Japanese and foreign government bond securities, Japanese prefectural and foreign municipal bond, and corporate debt securities is mainly estimated based on prices for similar assets. If there are no prices for similar assets available, the fair value of these securities is estimated by using discounted cash flow methodologies and broker quotes. The fair value of CMBS and RMBS in the Americas and other asset-backed securities and debt securities refers to prices from independent pricing service vendors and brokers, such as trading prices and bit prices. If the Company and its subsidiaries cannot rely on such prices, the fair value is calculated by using discounted cash flow methodologies and broker quotes. In discounted cash flow methodologies, future cash flows estimated based on a number of assumptions such as default rate, prepayment rate, and seniority are discounted by discount rate adjusted for credit risk and liquidity risk. The following is a summary of the contractual maturities of available-for-sale debt securities and held-to-maturity debt securities held as of March 31, 2023: Available-for-sale debt securities held as of March 31, 2023
|  | Millions of yen |
|  | Amortized cost |  |  | Fair value |
Due within one year |  | ¥ | 75,103 |  |  | ¥ | 75,662 |
Due after one to five years |  |  | 305,405 |  |  |  | 305,832 |
Due after five to ten years |  |  | 378,144 |  |  |  | 364,070 |
Due after ten years |  |  | 1,730,206 |  |  |  | 1,489,044 |
|  | ¥ | 2,488,858 |  |  | ¥ | 2,234,608 |
Held-to-maturity debt securities held as of March 31, 2023
|  | Millions of yen |
|  | Amortized cost |  |  | Fair value |
Due after five to ten years |  | ¥ | 28,658 |  |  | ¥ | 32,204 |
Due after ten years |  |  | 86,101 |  |  |  | 97,474 |
|  | ¥ | 114,759 |  |  | ¥ | 129,678 |
Debt securities not due at a single maturity date, such as mortgage-backed securities, are included in the above table based on their final maturities. Certain borrowers may have the right to call or prepay obligations. This right may cause actual maturities to differ from the contractual maturities summarized above. Included in finance revenues in the consolidated statements of income is interest income on investment securities of ¥11,870 million, ¥12,737 million and ¥19,906 million for fiscal 2021, 2022 and 2023, respectively. There were no available-for-sale debt securities accounted for as purchased credit deterioration financial assets acquired during fiscal 2022 and 2023.

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