XML 81 R66.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

Long-Duration Insurance Contracts Relating to Life Insurance Operations (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2024
Insurance [Abstract] |
Schedule of Liability For Future Policy Benefits Including Deferred Profit Liabilities | The following table presents the effect on the liability for future policy benefits (including deferred profit liabilities) as of the transition date, using the modified retrospective transition approach.
|  | Millions of yen |
|  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |  |  | Total |
Balance at March 31, 2021 |  | ¥ | 610,877 |  |  | ¥ | 493,558 |  |  | ¥ | 48,259 |  |  | ¥ | 1,152,694 |
Effect of change in discount rates * |  |  | 22,686 |  |  |  | 52,967 |  |  |  | (46,716 | ) |  |  | 28,937 |
Balance at April 1, 2021 |  | ¥ | 633,563 |  |  | ¥ | 546,525 |  |  | ¥ | 1,543 |  |  | ¥ | 1,181,631 |
* | The impact on the liability for future policy benefits is due to the difference in the discount rates used before and after the adoption of LDTI.
Schedule of Reconciliation of Liability For Future Policy Benefits | The following tables present balances of and changes in the liability for future policy benefits as of and for the fiscal year ended March 31, 2022.
|  | Millions of yen |
|  | March 31, 2022 |
Present value of expected net premiums |  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |
Balance at April 1, 2021 |  | ¥ | 909,868 |  |  | ¥ | 1,377,265 |  |  | ¥ | 366,081 |
Beginning balance at original discount rate |  |  | 843,892 |  |  |  | 1,261,182 |  |  |  | 355,835 |
Effect of changes in cash flow assumptions |  |  | 21,353 |  |  |  | 28,690 |  |  |  | 662 |
Effect of actual variances from expected experience |  |  | 2,351 |  |  |  | 1,414 |  |  |  | (209 | )
Adjusted beginning balance |  |  | 867,596 |  |  |  | 1,291,286 |  |  |  | 356,288 |
Issuances |  |  | 82,105 |  |  |  | 86,304 |  |  |  | 77,532 |
Interests |  |  | 12,490 |  |  |  | 19,412 |  |  |  | 9,263 |
Net premium earned |  |  | (96,605 | ) |  |  | (114,874 | ) |  |  | (49,290 | )
Actual variances from cash flow assumptions |  |  | (299 | ) |  |  | (652 | ) |  |  | (8 | )
Derecognition |  |  | 7,285 |  |  |  | 3,901 |  |  |  | 2,610 |
Effect of changes in foreign exchange rate |  |  | 0 |  |  |  | 0 |  |  |  | 41,684 |
Ending balance at original discount rate |  |  | 872,572 |  |  |  | 1,285,377 |  |  |  | 438,079 |
Effect of changes in discount rates |  |  | 54,338 |  |  |  | 95,576 |  |  |  | (15,326 | )
Balance at March 31, 2022 |  | ¥ | 926,910 |  |  | ¥ | 1,380,953 |  |  | ¥ | 422,753 |
|  | Millions of yen |
|  | March 31, 2022 |
Present value of expected future policy benefits |  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |
Balance at April 1, 2021 |  | ¥ | 1,526,258 |  |  | ¥ | 1,877,906 |  |  | ¥ | 366,081 |
Beginning balance at original discount rate |  |  | 1,437,596 |  |  |  | 1,708,857 |  |  |  | 402,552 |
Effect of changes in cash flow assumptions |  |  | 22,525 |  |  |  | 29,515 |  |  |  | 626 |
Adjusted beginning balance |  |  | 1,460,121 |  |  |  | 1,738,372 |  |  |  | 403,178 |
Issuances |  |  | 82,105 |  |  |  | 86,304 |  |  |  | 77,532 |
Interests |  |  | 23,867 |  |  |  | 27,677 |  |  |  | 11,125 |
Insurance claims paid |  |  | (42,897 | ) |  |  | (65,052 | ) |  |  | (1,631 | )
Actual variances from cash flow assumptions |  |  | (12,698 | ) |  |  | (6,083 | ) |  |  | (329 | )
Derecognition |  |  | 24,520 |  |  |  | 12,773 |  |  |  | 2,533 |
Effect of changes in foreign exchange rate |  |  | 0 |  |  |  | 0 |  |  |  | 51,096 |
Ending balance at original discount rate |  |  | 1,535,018 |  |  |  | 1,793,991 |  |  |  | 543,504 |
Effect of changes in discount rates |  |  | 56,250 |  |  |  | 128,012 |  |  |  | (106,040 | )
Balance at March 31, 2022 |  | ¥ | 1,591,268 |  |  | ¥ | 1,922,003 |  |  | ¥ | 437,464 |
Net liability for future policy benefits |  | ¥ | 664,358 |  |  | ¥ | 541,050 |  |  | ¥ | 14,711 |
Deferred profit liabilities |  |  | 26,173 |  |  |  | 54,801 |  |  |  | 7,573 |
Subtotal |  |  | 690,531 |  |  |  | 595,851 |  |  |  | 22,284 |
Less: Reinsurance recoverable |  |  | 210 |  |  |  | 0 |  |  |  | 0 |
The liability for future policy benefits, after reinsurance recoverable |  | ¥ | 690,321 |  |  | ¥ | 595,851 |  |  | ¥ | 22,284 |
The following tables present balances of and changes in the liability for future policy benefits as of and for the fiscal year ended March 31, 2023 and 2024.
|  | Millions of yen |
|  | March 31, 2023 |  |  | March 31, 2024 |
Present value of expected net premiums |  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |  |  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |
Beginning balance |  | ¥ | 926,910 |  |  | ¥ | 1,380,953 |  |  | ¥ | 422,753 |  |  | ¥ | 894,537 |  |  | ¥ | 1,389,063 |  |  | ¥ | 374,951 |
Beginning balance at original discount rate |  |  | 872,572 |  |  |  | 1,285,377 |  |  |  | 438,079 |  |  |  | 865,333 |  |  |  | 1,338,398 |  |  |  | 409,847 |
Effect of changes in cash flow assumptions |  |  | 126 |  |  |  | 48,389 |  |  |  | (6,975 | ) |  |  | (6,213 | ) |  |  | 3,634 |  |  |  | 2,106 |
Effect of actual variances from expected experience |  |  | 2,495 |  |  |  | 22,851 |  |  |  | (1,957 | ) |  |  | 1,418 |  |  |  | 2,865 |  |  |  | (2,531 | )
Adjusted beginning balance |  |  | 875,193 |  |  |  | 1,356,617 |  |  |  | 429,147 |  |  |  | 860,538 |  |  |  | 1,344,897 |  |  |  | 409,422 |
Issuances |  |  | 76,519 |  |  |  | 83,982 |  |  |  | 22,660 |  |  |  | 94,169 |  |  |  | 52,510 |  |  |  | 43,378 |
Interests |  |  | 11,715 |  |  |  | 18,762 |  |  |  | 10,966 |  |  |  | 10,840 |  |  |  | 18,439 |  |  |  | 12,405 |
Net premium earned |  |  | (101,554 | ) |  |  | (117,670 | ) |  |  | (60,198 | ) |  |  | (106,300 | ) |  |  | (119,416 | ) |  |  | (61,594 | )
Actual variances from cash flow assumptions |  |  | (385 | ) |  |  | (710 | ) |  |  | (1,274 | ) |  |  | (550 | ) |  |  | (862 | ) |  |  | (1,222 | )
Derecognition |  |  | 3,845 |  |  |  | (2,583 | ) |  |  | (33,441 | ) |  |  | 262 |  |  |  | (6,423 | ) |  |  | (32,681 | )
Effect of changes in foreign exchange rate |  |  | 0 |  |  |  | 0 |  |  |  | 41,987 |  |  |  | 0 |  |  |  | 0 |  |  |  | 54,478 |
Ending balance at original discount rate |  |  | 865,333 |  |  |  | 1,338,398 |  |  |  | 409,847 |  |  |  | 858,959 |  |  |  | 1,289,145 |  |  |  | 424,186 |
Effect of changes in discount rates |  |  | 29,204 |  |  |  | 50,665 |  |  |  | (34,896 | ) |  |  | 14,079 |  |  |  | 17,574 |  |  |  | (34,522 | )
Ending balance |  | ¥ | 894,537 |  |  | ¥ | 1,389,063 |  |  | ¥ | 374,951 |  |  | ¥ | 873,038 |  |  | ¥ | 1,306,719 |  |  | ¥ | 389,664 |
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
Present value of expected future policy benefits |  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |  |  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |
Beginning balance |  | ¥ | 1,591,268 |  |  | ¥ | 1,922,003 |  |  | ¥ | 437,464 |  |  | ¥ | 1,571,886 |  |  | ¥ | 1,918,462 |  |  | ¥ | 387,073 |
Beginning balance at original discount rate |  |  | 1,535,018 |  |  |  | 1,793,991 |  |  |  | 543,504 |  |  |  | 1,598,009 |  |  |  | 1,887,744 |  |  |  | 573,616 |
Effect of changes in cash flow assumptions |  |  | 1,506 |  |  |  | 53,098 |  |  |  | (6,296 | ) |  |  | (7,962 | ) |  |  | 4,600 |  |  |  | 1,782 |
Adjusted beginning balance |  |  | 1,536,524 |  |  |  | 1,847,089 |  |  |  | 537,208 |  |  |  | 1,590,047 |  |  |  | 1,892,344 |  |  |  | 575,398 |
Issuances |  |  | 76,519 |  |  |  | 83,982 |  |  |  | 22,660 |  |  |  | 94,169 |  |  |  | 52,510 |  |  |  | 43,378 |
Interests |  |  | 24,023 |  |  |  | 27,839 |  |  |  | 14,552 |  |  |  | 23,981 |  |  |  | 28,159 |  |  |  | 17,649 |
Insurance claims paid |  |  | (45,075 | ) |  |  | (96,364 | ) |  |  | (13,370 | ) |  |  | (52,161 | ) |  |  | (70,513 | ) |  |  | (17,757 | )
Actual variances from cash flow assumptions |  |  | (12,376 | ) |  |  | 20,178 |  |  |  | 9,002 |  |  |  | (11,644 | ) |  |  | (7,465 | ) |  |  | 11,794 |
Derecognition |  |  | 18,394 |  |  |  | 5,020 |  |  |  | (47,189 | ) |  |  | 13,751 |  |  |  | 695 |  |  |  | (49,973 | )
Effect of changes in foreign exchange rate |  |  | 0 |  |  |  | 0 |  |  |  | 50,753 |  |  |  | 0 |  |  |  | 0 |  |  |  | 78,728 |
Ending balance at original discount rate |  |  | 1,598,009 |  |  |  | 1,887,744 |  |  |  | 573,616 |  |  |  | 1,658,143 |  |  |  | 1,895,730 |  |  |  | 659,217 |
Effect of changes in discount rates |  |  | (26,123 | ) |  |  | 30,718 |  |  |  | (186,543 | ) |  |  | (92,266 | ) |  |  | (51,131 | ) |  |  | (212,136 | )
Ending balance |  | ¥ | 1,571,886 |  |  | ¥ | 1,918,462 |  |  | ¥ | 387,073 |  |  | ¥ | 1,565,877 |  |  | ¥ | 1,844,599 |  |  | ¥ | 447,081 |
Net liability for future policy benefits |  | ¥ | 677,349 |  |  | ¥ | 529,399 |  |  | ¥ | 12,122 |  |  | ¥ | 692,839 |  |  | ¥ | 537,880 |  |  | ¥ | 57,417 |
Deferred profit liabilities |  |  | 35,770 |  |  |  | 61,668 |  |  |  | 15,578 |  |  |  | 47,068 |  |  |  | 68,539 |  |  |  | 26,930 |
Subtotal |  |  | 713,119 |  |  |  | 591,067 |  |  |  | 27,700 |  |  |  | 739,907 |  |  |  | 606,419 |  |  |  | 84,347 |
Less: Reinsurance recoverable |  |  | 215 |  |  |  | 0 |  |  |  | 0 |  |  |  | 211 |  |  |  | 0 |  |  |  | 0 |
The liability for future policy benefits, after reinsurance recoverable |  | ¥ | 712,904 |  |  | ¥ | 591,067 |  |  | ¥ | 27,700 |  |  | ¥ | 739,696 |  |  | ¥ | 606,419 |  |  | ¥ | 84,347 |
Schedule of Policy Liabilities And Policy Account Balances In Statement of Financial Position | The following table provides the breakdown of the policy liabilities and policy account balances recorded in the consolidated balance sheets as of March 31, 2022:
|  | Millions of yen |
|  | March 31, 2022 |
Yen-denominated insurance |  |  |  |
(First Sector) |  | ¥ | 690,321 |
Yen-denominated insurance (Third Sector) |  |  | 595,851 |
Foreign currency denominated insurance |  |  | 22,284 |
Subtotal |  |  | 1,308,456 |
Policy account balances for variable annuity and variable life insurance contracts and market risk benefits |  |  | 198,905 |
Fixed annuities and annuitization benefits |  |  | 193,322 |
Others * |  |  | 212,015 |
Total |  | ¥ | 1,912,698 |
* | Others include unearned premiums and liabilities for unpaid claims.
The following tables provide the breakdown of the policy liabilities and policy account balances recorded in the consolidated balance sheets as of March 31, 2023 and 2024:
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
Yen-denominated insurance (First Sector) |  | ¥ | 712,904 |  |  | ¥ | 739,696 |
Yen-denominated insurance (Third Sector) |  |  | 591,067 |  |  |  | 606,419 |
Foreign currency denominated insurance |  |  | 27,700 |  |  |  | 84,347 |
Subtotal |  |  | 1,331,671 |  |  |  | 1,430,462 |
Policy account balances for variable annuity and variable life insurance contracts and market risk benefits |  |  | 163,734 |  |  |  | 167,207 |
Fixed annuities and annuitization benefits |  |  | 158,952 |  |  |  | 138,419 |
Others* |  |  | 177,700 |  |  |  | 156,422 |
Total |  | ¥ | 1,832,057 |  |  | ¥ | 1,892,510 |
* | Others include unearned premiums and liabilities for unpaid claims.
Schedule of Liability For Future Policy Benefit Expected Future Policy Benefit Undiscounted Before Reinsurance | The amount of undiscounted and discounted expected future gross premiums and expected future policy benefits and expenses as of March 31, 2023 and 2024 are as follows:
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
|  | Undiscounted |  |  | Discounted |  |  | Undiscounted |  |  | Discounted |
Yen-denominated insurance (First Sector) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected future gross premiums |  | ¥ | 1,538,107 |  |  | ¥ | 1,429,503 |  |  | ¥ | 1,525,071 |  |  | ¥ | 1,395,370 |
Expected future policy benefits and expenses |  |  | 2,291,205 |  |  |  | 1,571,886 |  |  |  | 2,378,836 |  |  |  | 1,565,877 |
Yen-denominated insurance (Third Sector) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected future gross premiums |  |  | 2,695,239 |  |  |  | 2,388,386 |  |  |  | 2,590,963 |  |  |  | 2,242,701 |
Expected future policy benefits and expenses |  |  | 2,578,630 |  |  |  | 1,918,462 |  |  |  | 2,583,535 |  |  |  | 1,844,599 |
Foreign currency denominated insurance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected future gross premiums |  |  | 626,411 |  |  |  | 492,588 |  |  |  | 685,134 |  |  |  | 535,943 |
Expected future policy benefits and expenses |  |  | 1,097,567 |  |  |  | 387,073 |  |  |  | 1,300,018 |  |  |  | 447,081 |
Schedule of Liability For Future Policy Benefit Gross Premiums And Interest Expense | The amounts of gross premiums and interest expense recognized in the consolidated statement of income for the fiscal year ended March 31, 2022, 2023 and 2024 are as follows:
|  | Millions of yen |
|  | Fiscal Year ended March 31, 2022 |  |  | Fiscal Year ended March 31, 2023 |  |  | Fiscal Year ended March 31, 2024 |
|  | Gross premiums |  |  | Interest expense |  |  | Gross premiums |  |  | Interest expense |  |  | Gross premiums |  |  | Interest expense |
Yen-denominated insurance (First Sector) |  | ¥ | 158,477 |  |  | ¥ | 11,376 |  |  | ¥ | 162,667 |  |  | ¥ | 12,309 |  |  | ¥ | 168,805 |  |  | ¥ | 13,142 |
Yen-denominated insurance (Third Sector) |  |  | 207,553 |  |  |  | 8,265 |  |  |  | 208,640 |  |  |  | 9,077 |  |  |  | 205,787 |  |  |  | 9,720 |
Foreign currency denominated insurance |  |  | 61,317 |  |  |  | 1,862 |  |  |  | 77,369 |  |  |  | 3,585 |  |  |  | 82,332 |  |  |  | 5,243 |
Total |  | ¥ | 427,347 |  |  | ¥ | 21,503 |  |  | ¥ | 448,676 |  |  | ¥ | 24,971 |  |  | ¥ | 456,924 |  |  | ¥ | 28,105 |
Schedule of Liability For Future Policy Benefit, Weighted Average Discount Rates | The weighted average discount rates for the liability for future policy benefits as of March 31, 2023 and 2024 are as follows:
|  | Weighted average rate |
|  | 2023 |  |  | 2024 |
Yen-denominated insurance (First Sector) |  |  |  |  |  |  |  |
Weighted average of the original discount rates |  |  | 1.6 | % |  |  | 1.7 | %
Weighted average of the current discount rates |  |  | 1.9 |  |  |  | 2.1 |
Yen-denominated insurance (Third Sector) |  |  |  |  |  |  |  |
Weighted average of the original discount rates |  |  | 1.7 |  |  |  | 1.7 |
Weighted average of the current discount rates |  |  | 1.8 |  |  |  | 2.1 |
Foreign currency denominated insurance |  |  |  |  |  |  |  |
Weighted average of the original discount rates |  |  | 2.9 |  |  |  | 3.1 |
Weighted average of the current discount rates |  |  | 5.2 |  |  |  | 5.5 |
Schedule of Liability For Future Policy Benefit, Weighted Average Duration | The weighted average duration of the liability for future policy benefit as of March 31, 2023 and 2024 are as follows:
|  | Years |
|  | 2023 |  |  | 2024 |
Yen-denominated insurance (First Sector) |  |  | 37.9 |  |  |  | 36.4 |
Yen-denominated insurance (Third Sector) |  |  | 36.8 |  |  |  | 34.7 |
Foreign currency denominated insurance |  |  | 40.7 |  |  |  | 36.9 |
Schedule of Deferred Policy Acquisition Costs | The following tables present balances of and changes in the deferred policy acquisition costs as of and for the fiscal year ended March 31, 2023 and 2024:
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
|  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |  |  | Total |  |  | Yen-denominated insurance (First Sector) |  |  | Yen-denominated insurance (Third Sector) |  |  | Foreign currency denominated insurance |  |  | Total |
Beginning balance |  | ¥ | 74,676 |  |  | ¥ | 159,041 |  |  | ¥ | 35,243 |  |  | ¥ | 268,960 |  |  | ¥ | 77,957 |  |  | ¥ | 166,696 |  |  | ¥ | 42,726 |  |  | ¥ | 287,379 |
Capitalization |  |  | 8,682 |  |  |  | 16,795 |  |  |  | 5,725 |  |  |  | 31,202 |  |  |  | 10,285 |  |  |  | 12,855 |  |  |  | 7,120 |  |  |  | 30,260 |
Amortization |  |  | (5,401 | ) |  |  | (9,140 | ) |  |  | (1,779 | ) |  |  | (16,320 | ) |  |  | (5,901 | ) |  |  | (9,970 | ) |  |  | (2,301 | ) |  |  | (18,172 | )
Effect of changes in foreign exchange rate |  |  | 0 |  |  |  | 0 |  |  |  | 3,537 |  |  |  | 3,537 |  |  |  | 0 |  |  |  | 0 |  |  |  | 6,267 |  |  |  | 6,267 |
Ending balance |  | ¥ | 77,957 |  |  | ¥ | 166,696 |  |  | ¥ | 42,726 |  |  | ¥ | 287,379 |  |  | ¥ | 82,341 |  |  | ¥ | 169,581 |  |  | ¥ | 53,812 |  |  | ¥ | 305,734 |
Schedule of Minimum Guaranteed Interest Rates | The following table presents policyholder account balances for fixed annuity and annuitization benefits by range of minimum guaranteed interest rates as of March 31, 2023 and 2024.
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
Range of minimum guaranteed interest rates |  | Minimum guarantees |  |  | Minimum guarantees |
0.00% - less than 1.50% |  | ¥ | 152,259 |  |  | ¥ | 131,328 |
1.50% - less than 2.50% |  |  | 6,644 |  |  |  | 7,091 |
2.50% or more |  |  | 49 |  |  |  | 0 |
Total |  | ¥ | 158,952 |  |  | ¥ | 138,419 |
Schedule of Balances of Policy Account | The following table provides information about fixed annuity and annuitization benefits for the fiscal year ended March 31, 2023 and 2024.
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
Beginning balance |  | ¥ | 193,322 |  |  | ¥ | 158,952 |
Transfer in |  |  | 17,223 |  |  |  | 10,249 |
Surrenders and partial surrenders |  |  | (58 | ) |  |  | (71 | )
Benefit payments and lump sum payments, etc. |  |  | (50,956 | ) |  |  | (31,179 | )
Policy charges |  |  | (262 | ) |  |  | (229 | )
Transfer out |  |  | (409 | ) |  |  | (290 | )
Interests |  |  | 1,209 |  |  |  | 1,023 |
Others |  |  | (1,117 | ) |  |  | (36 | )
Ending balance |  | ¥ | 158,952 |  |  | ¥ | 138,419 |
|  | 2023 |  |  | 2024 |
Weighted average guaranteed interest rate (%) |  |  | 0.7 |  |  |  | 0.7 |
Benefits in excess of policyholder account balances (Millions of yen) |  | ¥ | 1 |  |  | ¥ | 1 |
Cash surrender value (Millions of yen) |  |  | 152,578 |  |  |  | 132,411 |
Schedule of Policy Account Balance And Market Risk Benefits | The following table provides information about policy account balances for variable annuity and variable life insurance contracts and market risk benefits as of and for the fiscal year ended March 31, 2023 and 2024:
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
Beginning balance |  | ¥ | 198,905 |  |  | ¥ | 163,734 |
Effect of changes other than through net income and other comprehensive income |  |  | (28,754 | ) |  |  | (26,997 | )
Surrenders and withdrawals |  |  | (4,083 | ) |  |  | (7,641 | )
Transfer in |  |  | (14,093 | ) |  |  | (7,891 | )
Benefit payments |  |  | (10,762 | ) |  |  | (11,434 | )
Others |  |  | 184 |  |  |  | (31 | )
Changes through net income |  |  | (6,343 | ) |  |  | 30,205 |
Effect of changes in fair value of corresponding investment assets |  |  | (2,347 | ) |  |  | 40,846 |
Fee income |  |  | (3,938 | ) |  |  | (3,750 | )
Effect of changes in fair value of market risk benefits |  |  | (58 | ) |  |  | (6,891 | )
Changes through other comprehensive income |  |  | (74 | ) |  |  | 265 |
Effect of changes in the instrument-specific credit risk |  |  | (74 | ) |  |  | 265 |
Ending balance |  | ¥ | 163,734 |  |  | ¥ | 167,207 |
|  | Millions of yen |
|  | 2023 |  |  | 2024 |
Policyholder account balances |  | ¥ | 157,399 |  |  | ¥ | 167,496 |
Market risk benefits |  |  | 6,335 |  |  |  | (289 | )
Total |  | ¥ | 163,734 |  |  | ¥ | 167,207 |

X
- Definition Schedule of liability for future policy benefit expected future policy benefit undiscounted and discounted. + References No definition available. + Details
Name: | ck0001070304_ScheduleOfLiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitUndiscountedAndDiscounted
Namespace Prefix: | ck0001070304_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of liability for future policy benefit gross premiums and interest expense. + References No definition available. + Details
Name: | ck0001070304_ScheduleOfLiabilityForFuturePolicyBenefitGrossPremiumsAndInterestExpense
Namespace Prefix: | ck0001070304_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of liability for future policy benefit, weighted average discount rates. + References No definition available. + Details
Name: | ck0001070304_ScheduleOfLiabilityForFuturePolicyBenefitWeightedAverageDiscountRates
Namespace Prefix: | ck0001070304_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of liability for future policy benefit, weighted average duration. + References No definition available. + Details
Name: | ck0001070304_ScheduleOfLiabilityForFuturePolicyBenefitWeightedAverageDuration
Namespace Prefix: | ck0001070304_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of liability for future policy benefits including deferred profit liabilities. + References No definition available. + Details
Name: | ck0001070304_ScheduleOfLiabilityForFuturePolicyBenefitsIncludingDeferredProfitLiabilities
Namespace Prefix: | ck0001070304_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of policy account balance and market risk benefits. + References No definition available. + Details
Name: | ck0001070304_ScheduleOfPolicyAccountBalanceAndMarketRiskBenefits
Namespace Prefix: | ck0001070304_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of policy liabilities and policy account balances in statement of financial position. + References No definition available. + Details
Name: | ck0001070304_ScheduleOfPolicyLiabilitiesAndPolicyAccountBalancesInStatementOfFinancialPosition
Namespace Prefix: | ck0001070304_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the movement in deferred policy acquisition costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479432/944-30-50-2B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479432/944-30-50-2B Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479401/944-30-55-2 + Details
Name: | us-gaap_DeferredPolicyAcquisitionCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InsuranceAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of beginning balance to ending balance for liability for future policy benefit, with separate presentation of expected future net premium and expected future benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29E Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of policyholder account balance by range of guaranteed minimum crediting rate and related range of difference between rate being credited to policyholder and respective guaranteed minimum. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29F -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29F Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A + Details
Name: | us-gaap_PolicyholderAccountBalanceGuaranteedMinimumCreditingRateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about policyholder account balance, including, but not limited to change in liability and related cash surrender value. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29F -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29F Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A + Details
Name: | us-gaap_PolicyholderAccountBalanceTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration