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Shareholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2026
Equity [Abstract] |
Changes in Accumulated Other Comprehensive Income by Component | The following tables present the changes in each component of accumulated other comprehensive income (AOCI) and the effect of reclassifications out of AOCI into the respective lines in the condensed consolidated statements of operations. Changes in Accumulated Other Comprehensive Income (Loss) by Component First Quarter 2026
| Net Unrealized Gains (Losses) on Investments with: |  | ISCR on FG VIEs’ Liabilities with Recourse |  | Change in Discount Rates on the LFPB |  | Cumulative Translation Adjustment |  | Cash Flow Hedge |  | Total AOCI
| No Credit Impairment |  | Credit Impairment |  |  |  |  |
| (in millions)
Balance, December 31, 2025 | $ | (48) |  |  | $ | (72) |  |  | $ | (17) |  |  | $ | — |  |  | $ | (35) |  |  | $ | 4 |  |  | $ | (168) |
Other comprehensive income (loss) before reclassifications | (83) |  |  | (57) |  |  | — |  |  | 17 |  |  | (1) |  |  | — |  |  | (124) |
Less: Amounts reclassified from AOCI to: |  |  |  |  |  |  |  |  |  |  |  |  |
Net realized investment gains (losses) | 1 |  |  | (16) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (15) |
Total before tax | 1 |  |  | (16) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (15) |
Tax (provision) benefit | — |  |  | 3 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 3 |
Total amount reclassified from AOCI, net of tax | 1 |  |  | (13) |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (12) |
Other comprehensive income (loss) | (84) |  |  | (44) |  |  | — |  |  | 17 |  |  | (1) |  |  | — |  |  | (112) |
Balance, March 31, 2026 | $ | (132) |  |  | $ | (116) |  |  | $ | (17) |  |  | $ | 17 |  |  | $ | (36) |  |  | $ | 4 |  |  | $ | (280) |
Changes in Accumulated Other Comprehensive Income (Loss) by Component First Quarter 2025
| Net Unrealized Gains (Losses) on Investments with: |  | ISCR on FG VIEs’ Liabilities with Recourse |  | Cumulative Translation Adjustment |  | Cash Flow Hedge |  | Total AOCI
| No Credit Impairment |  | Credit Impairment |  |  |  |
| (in millions)
Balance, December 31, 2024 | $ | (235) |  |  | $ | (99) |  |  | $ | (18) |  |  | $ | (37) |  |  | $ | 4 |  |  | $ | (385) |
Other comprehensive income (loss) before reclassifications | 46 |  |  | 13 |  |  | (1) |  |  | (1) |  |  | — |  |  | 57 |
Less: Amounts reclassified from AOCI to: |  |  |  |  |  |  |  |  |  |  |
Net realized investment gains (losses) | (6) |  |  | (10) |  |  | — |  |  | — |  |  | — |  |  | (16) |
Total before tax | (6) |  |  | (10) |  |  | — |  |  | — |  |  | — |  |  | (16) |
Tax (provision) benefit | — |  |  | 2 |  |  | — |  |  | — |  |  | — |  |  | 2 |
Total amount reclassified from AOCI, net of tax | (6) |  |  | (8) |  |  | — |  |  | — |  |  | — |  |  | (14) |
Other comprehensive income (loss) | 52 |  |  | 21 |  |  | (1) |  |  | (1) |  |  | — |  |  | 71 |
Balance, March 31, 2025 | $ | (183) |  |  | $ | (78) |  |  | $ | (19) |  |  | $ | (38) |  |  | $ | 4 |  |  | $ | (314) |
Schedule of Share Repurchases | The following table presents information regarding AGL’s repurchases of its common shares during the period from January 1, 2025 through May 6, 2026. Share Repurchases
Period |  | Number of Shares Repurchased |  | Total Payments (1) (in millions) |  | Average Price Paid Per Share (1)
2025 (January 1 - March 31) |  | 1,335,228 |  |  | $ | 120 |  |  | $ | 89.72 |
2025 (April 1 - June 30) |  | 1,537,505 |  |  | 131 |  |  | 85.03 |
2025 (July 1 - September 30) |  | 1,423,121 |  |  | 118 |  |  | 83.06 |
2025 (October 1 - December 31) |  | 1,523,773 |  |  | 131 |  |  | 86.16 |
Total 2025 |  | 5,819,627 |  |  | $ | 500 |  |  | $ | 85.92 |
2026 (January 1 - March 31) |  | 881,981 |  |  | 75 |  |  | 85.58 |
2026 (April 1 - May 6) |  | 349,639 |  |  | 29 |  |  | 82.67 |
Total 2026 |  | 1,231,620 |  |  | $ | 104 |  |  | $ | 84.76 |
____________________ (1) Excludes commissions.

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