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v3.23.3

Accumulated Other Comprehensive Income (Loss) (Changes in Components of Accumulated Other Comprehensive Income (Loss)) (Detail) - JPY (¥) ¥ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Beginning Balance | ¥ 3,722,041 | ¥ 3,523,175 | ¥ 3,614,322 | ¥ 3,414,178
Total other comprehensive income (loss) | 75,139 | 98,522 | 175,943 | 218,869
Ending Balance | 3,841,996 | 3,653,898 | 3,841,996 | 3,653,898
Net unrealized gains (losses) on investment in securities |  |  |  |
Beginning Balance | (184,174) | (154,265) | (183,034) | (72,892)
Net unrealized gains (losses) | (98,165) | (62,396) | (96,984) | (142,995)
Reclassification adjustment included in net income, net of tax | (1,097) | (98) | (3,428) | (872)
Total other comprehensive income (loss) | (99,262) | (62,494) | (100,412) | (143,867)
Transaction with noncontrolling interests |  |  | 0 |
Less: Other Comprehensive Income (loss) Attributable to the Noncontrolling Interests | 0 | 0 | 0 | 0
Less: Other Comprehensive Income (loss) Attributable to the Redeemable Noncontrolling Interests | 9 | 0 | (1) | 0
Ending Balance | (283,445) | (216,759) | (283,445) | (216,759)
Impact of changes in policy liability discount rate |  |  |  |
Beginning Balance | 169,035 | 114,386 | 164,516 | 37,535
Net unrealized gains (losses) | 106,057 | 82,515 | 110,576 | 159,366
Total other comprehensive income (loss) | 106,057 | 82,515 | 110,576 | 159,366
Transaction with noncontrolling interests |  |  | 0 |
Less: Other Comprehensive Income (loss) Attributable to the Noncontrolling Interests | 0 | 0 | 0 | 0
Less: Other Comprehensive Income (loss) Attributable to the Redeemable Noncontrolling Interests | 0 | 0 | 0 | 0
Ending Balance | 275,092 | 196,901 | 275,092 | 196,901
Debt valuation adjustments |  |  |  |
Beginning Balance | 231 | 205 | 275 | 221
Net unrealized gains (losses) | (75) | 80 | (114) | 66
Reclassification adjustment included in net income, net of tax | (4) | (4) | (9) | (6)
Total other comprehensive income (loss) | (79) | 76 | (123) | 60
Transaction with noncontrolling interests |  |  | 0 |
Less: Other Comprehensive Income (loss) Attributable to the Noncontrolling Interests | 0 | 0 | 0 | 0
Less: Other Comprehensive Income (loss) Attributable to the Redeemable Noncontrolling Interests | 0 | 0 | 0 | 0
Ending Balance | 152 | 281 | 152 | 281
Defined benefit pension plans |  |  |  |
Beginning Balance | (3,471) | (8,239) | (3,617) | (8,072)
Net unrealized gains (losses) | (171) | (105) | 51 | (225)
Reclassification adjustment included in net income, net of tax | (65) | (46) | (140) | (91)
Total other comprehensive income (loss) | (236) | (151) | (89) | (316)
Transaction with noncontrolling interests |  |  | 0 |
Less: Other Comprehensive Income (loss) Attributable to the Noncontrolling Interests | (1) | 0 | 0 | 2
Less: Other Comprehensive Income (loss) Attributable to the Redeemable Noncontrolling Interests | 0 | 0 | 0 | 0
Ending Balance | (3,706) | (8,390) | (3,706) | (8,390)
Foreign currency translation adjustments |  |  |  |
Beginning Balance | 251,172 | 169,590 | 155,912 | 61,914
Net unrealized gains (losses) | 62,008 | 70,964 | 158,400 | 184,993
Reclassification adjustment included in net income, net of tax | 2,257 | 12 | 5,183 | 102
Total other comprehensive income (loss) | 64,265 | 70,976 | 163,583 | 185,095
Transaction with noncontrolling interests |  |  | 11 |
Less: Other Comprehensive Income (loss) Attributable to the Noncontrolling Interests | 1,230 | 1,481 | 5,191 | 7,886
Less: Other Comprehensive Income (loss) Attributable to the Redeemable Noncontrolling Interests | 55 | 50 | 163 | 88
Ending Balance | 314,152 | 239,035 | 314,152 | 239,035
Net unrealized gains (losses) on derivative instruments |  |  |  |
Beginning Balance | 20,124 | 12,986 | 22,083 | 2,788
Net unrealized gains (losses) | 3,783 | 8,763 | 6,623 | 17,082
Reclassification adjustment included in net income, net of tax | 611 | (1,163) | (4,215) | 1,449
Total other comprehensive income (loss) | 4,394 | 7,600 | 2,408 | 18,531
Transaction with noncontrolling interests |  |  | (176) |
Less: Other Comprehensive Income (loss) Attributable to the Noncontrolling Interests | 63 | 739 | (140) | 1,472
Less: Other Comprehensive Income (loss) Attributable to the Redeemable Noncontrolling Interests | 0 | 0 | 0 | 0
Ending Balance | 24,455 | 19,847 | 24,455 | 19,847
Accumulated other comprehensive income (loss) |  |  |  |
Beginning Balance | 252,917 | 134,664 | 156,135 | 21,495
Total other comprehensive income (loss) | 75,139 | 98,522 | 175,943 | 218,869
Transaction with noncontrolling interests |  |  | (165) |
Less: Other Comprehensive Income (loss) Attributable to the Noncontrolling Interests | 1,292 | 2,220 | 5,051 | 9,360
Less: Other Comprehensive Income (loss) Attributable to the Redeemable Noncontrolling Interests | 64 | 50 | 162 | 88
Ending Balance | ¥ 326,700 | ¥ 230,916 | ¥ 326,700 | ¥ 230,916

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