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Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions | Total | Common stock | Additional paid-in capital | Retained earnings | Accumulated other comprehensive income (loss) | Treasury stock
--- | --- | --- | --- | --- | --- | ---
Balance, beginning of period at Dec. 31, 2021 |  | $ 17,031 | $ 135 | $ 2,529 | $ 40,963 | $ (8,411) | $ (18,185)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net earnings |  | 4,418 | 0 | 0 | 4,418 | 0 | 0
Unrealized foreign currency translation gains (losses) during period, net of income taxes |  | (1,579) | 0 | 0 | 0 | (1,579) | 0
Unrealized gains (losses) on fixed maturity securities during the period, net of income taxes and reclassification adjustments |  | (10,304) | 0 | 0 | 0 | (10,304) | 0
Unrealized gains (losses) on derivatives during period, net of income taxes |  | 3 | 0 | 0 | 0 | 3 | 0
Effect of changes in discount rate assumptions during period, net of income taxes |  | 13,732 | 0 | 0 | 0 | 13,732 | 0
Pension liability adjustment during period, net of income taxes |  | 130 | 0 | 0 | 0 | 130 | 0
Dividends to shareholders | [1] | (1,014) | 0 | 0 | (1,014) | 0 | 0
Exercise of stock options |  | 12 | 0 | 12 | 0 | 0 | 0
Share-based compensation |  | 62 | 0 | 62 | 0 | 0 | 0
Purchases of treasury stock |  | (2,425) | 0 | 0 | 0 | 0 | (2,425)
Treasury stock reissued |  | 74 | 0 | 38 | 0 | 0 | 36
Balance, end of period at Dec. 31, 2022 |  | 20,140 | 135 | 2,641 | 44,367 | (6,429) | (20,574)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net earnings |  | 4,659 | 0 | 0 | 4,659 | 0 | 0
Unrealized foreign currency translation gains (losses) during period, net of income taxes |  | (505) | 0 | 0 | 0 | (505) | 0
Unrealized gains (losses) on fixed maturity securities during the period, net of income taxes and reclassification adjustments |  | 1,841 | 0 | 0 | 0 | 1,841 | 0
Unrealized gains (losses) on derivatives during period, net of income taxes |  | 5 | 0 | 0 | 0 | 5 | 0
Effect of changes in discount rate assumptions during period, net of income taxes |  | (460) | 0 | 0 | 0 | (460) | 0
Pension liability adjustment during period, net of income taxes |  | 28 | 0 | 0 | 0 | 28 | 0
Dividends to shareholders | [1] | (1,033) | 0 | 0 | (1,033) | 0 | 0
Exercise of stock options |  | 13 | 0 | 13 | 0 | 0 | 0
Share-based compensation |  | 75 | 1 | 74 | 0 | 0 | 0
Purchases of treasury stock |  | (2,854) | 0 | 0 | 0 | 0 | (2,854)
Treasury stock reissued |  | 76 | 0 | 43 | 0 | 0 | 33
Balance, end of period at Dec. 31, 2023 |  | 21,985 | 136 | 2,771 | 47,993 | (5,520) | (23,395)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net earnings |  | 5,443 | 0 | 0 | 5,443 | 0 | 0
Unrealized foreign currency translation gains (losses) during period, net of income taxes |  | (929) | 0 | 0 | 0 | (929) | 0
Unrealized gains (losses) on fixed maturity securities during the period, net of income taxes and reclassification adjustments |  | (1,115) | 0 | 0 | 0 | (1,115) | 0
Unrealized gains (losses) on derivatives during period, net of income taxes |  | 2 | 0 | 0 | 0 | 2 | 0
Effect of changes in discount rate assumptions during period, net of income taxes |  | 4,566 | 0 | 0 | 0 | 4,566 | 0
Pension liability adjustment during period, net of income taxes |  | 18 | 0 | 0 | 0 | 18 | 0
Dividends to shareholders | [1] | (1,159) | 0 | 0 | (1,159) | 0 | 0
Exercise of stock options |  | 9 | 0 | 9 | 0 | 0 | 0
Share-based compensation |  | 65 | 0 | 65 | 0 | 0 | 0
Purchases of treasury stock |  | (2,868) | 0 | 0 | 0 | 0 | (2,868)
Treasury stock reissued |  | 81 | 0 | 49 | 0 | 0 | 32
Balance, end of period at Dec. 31, 2024 |  | $ 26,098 | $ 136 | $ 2,894 | $ 52,277 | $ (2,978) | $ (26,231)
[1] | Dividends to shareholders are recorded in the period in which they are declared.

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