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, 2024 |
|
$ 26,098
|
$ 136
|
$ 2,894
|
$ 52,277
|
$ (2,978)
|
$ (26,231)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
29
|
0
|
0
|
29
|
0
|
0
|
| Unrealized foreign currency translation gains (losses) during period, net of income taxes |
|
449
|
0
|
0
|
0
|
449
|
0
|
| Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments |
|
(1,257)
|
0
|
0
|
0
|
(1,257)
|
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 |
|
1,893
|
0
|
0
|
0
|
1,893
|
0
|
| Pension liability adjustment during period, net of income taxes |
|
32
|
0
|
0
|
0
|
32
|
0
|
| Dividends to shareholders |
[1] |
2
|
0
|
0
|
2
|
0
|
0
|
| Exercise of stock options |
|
4
|
0
|
4
|
0
|
0
|
0
|
| Share-based compensation |
|
8
|
0
|
8
|
0
|
0
|
0
|
| Purchases of treasury stock |
|
(949)
|
0
|
0
|
0
|
0
|
(949)
|
| Treasury stock reissued |
|
27
|
0
|
13
|
0
|
0
|
14
|
| Balance, end of period at Mar. 31, 2025 |
|
26,338
|
136
|
2,919
|
52,308
|
(1,859)
|
(27,166)
|
| Balance, beginning of period at Dec. 31, 2024 |
|
26,098
|
136
|
2,894
|
52,277
|
(2,978)
|
(26,231)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
2,267
|
|
|
|
|
|
| Balance, end of period at Sep. 30, 2025 |
|
28,688
|
136
|
2,977
|
53,923
|
653
|
(29,001)
|
| Balance, beginning of period at Mar. 31, 2025 |
|
26,338
|
136
|
2,919
|
52,308
|
(1,859)
|
(27,166)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
599
|
0
|
0
|
599
|
0
|
0
|
| Unrealized foreign currency translation gains (losses) during period, net of income taxes |
|
267
|
0
|
0
|
0
|
267
|
0
|
| Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments |
|
(595)
|
0
|
0
|
0
|
(595)
|
0
|
| Unrealized gains (losses) on derivatives during period, net of income taxes |
|
1
|
0
|
0
|
0
|
1
|
0
|
| Effect of changes in discount rate assumptions during period, net of income taxes |
|
1,695
|
0
|
0
|
0
|
1,695
|
0
|
| Pension liability adjustment during period, net of income taxes |
|
0
|
0
|
0
|
0
|
0
|
0
|
| Dividends to shareholders |
[1] |
(312)
|
0
|
0
|
(312)
|
0
|
0
|
| Exercise of stock options |
|
0
|
0
|
0
|
0
|
0
|
0
|
| Share-based compensation |
|
30
|
0
|
30
|
0
|
0
|
0
|
| Purchases of treasury stock |
|
(839)
|
0
|
0
|
0
|
0
|
(839)
|
| Treasury stock reissued |
|
16
|
0
|
9
|
0
|
0
|
7
|
| Balance, end of period at Jun. 30, 2025 |
|
27,200
|
136
|
2,958
|
52,595
|
(491)
|
(27,998)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
1,639
|
0
|
0
|
1,639
|
0
|
0
|
| Unrealized foreign currency translation gains (losses) during period, net of income taxes |
|
(222)
|
0
|
0
|
0
|
(222)
|
0
|
| Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments |
|
127
|
0
|
0
|
0
|
127
|
0
|
| Unrealized gains (losses) on derivatives during period, net of income taxes |
|
1
|
0
|
0
|
0
|
1
|
0
|
| Effect of changes in discount rate assumptions during period, net of income taxes |
|
1,238
|
0
|
0
|
0
|
1,238
|
0
|
| Pension liability adjustment during period, net of income taxes |
|
0
|
0
|
0
|
0
|
0
|
0
|
| Dividends to shareholders |
[1] |
(311)
|
0
|
0
|
(311)
|
0
|
0
|
| Exercise of stock options |
|
1
|
0
|
1
|
0
|
0
|
0
|
| Share-based compensation |
|
5
|
0
|
5
|
0
|
0
|
0
|
| Purchases of treasury stock |
|
(1,009)
|
0
|
0
|
0
|
0
|
(1,009)
|
| Treasury stock reissued |
|
19
|
0
|
13
|
0
|
0
|
6
|
| Balance, end of period at Sep. 30, 2025 |
|
28,688
|
136
|
2,977
|
53,923
|
653
|
(29,001)
|
| Balance, beginning of period at Dec. 31, 2025 |
|
29,490
|
136
|
3,024
|
54,682
|
1,452
|
(29,804)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
1,019
|
0
|
0
|
1,019
|
0
|
0
|
| Unrealized foreign currency translation gains (losses) during period, net of income taxes |
|
(114)
|
0
|
0
|
0
|
(114)
|
0
|
| Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments |
|
(856)
|
0
|
0
|
0
|
(856)
|
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 |
|
1,423
|
0
|
0
|
0
|
1,423
|
0
|
| Pension liability adjustment during period, net of income taxes |
|
(1)
|
0
|
0
|
0
|
(1)
|
0
|
| Dividends to shareholders |
[1] |
1
|
0
|
0
|
1
|
0
|
0
|
| Exercise of stock options |
|
2
|
0
|
2
|
0
|
0
|
0
|
| Share-based compensation |
|
25
|
0
|
25
|
0
|
0
|
0
|
| Purchases of treasury stock |
|
(1,051)
|
0
|
0
|
0
|
0
|
(1,051)
|
| Treasury stock reissued |
|
26
|
0
|
13
|
0
|
0
|
13
|
| Balance, end of period at Mar. 31, 2026 |
|
29,961
|
136
|
3,064
|
55,702
|
1,901
|
(30,842)
|
| Balance, beginning of period at Dec. 31, 2025 |
|
29,490
|
136
|
3,024
|
54,682
|
1,452
|
(29,804)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
2,147
|
|
|
|
|
|
| Balance, end of period at Sep. 30, 2026 |
|
29,283
|
136
|
3,153
|
56,215
|
2,413
|
(32,634)
|
| Balance, beginning of period at Mar. 31, 2026 |
|
29,961
|
136
|
3,064
|
55,702
|
1,901
|
(30,842)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
825
|
0
|
0
|
825
|
0
|
0
|
| Unrealized foreign currency translation gains (losses) during period, net of income taxes |
|
(87)
|
0
|
0
|
0
|
(87)
|
0
|
| Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments |
|
(88)
|
0
|
0
|
0
|
(88)
|
0
|
| Unrealized gains (losses) on derivatives during period, net of income taxes |
|
0
|
0
|
0
|
0
|
0
|
0
|
| Effect of changes in discount rate assumptions during period, net of income taxes |
|
957
|
0
|
0
|
0
|
957
|
0
|
| Pension liability adjustment during period, net of income taxes |
|
(2)
|
0
|
0
|
0
|
(2)
|
0
|
| Dividends to shareholders |
[1] |
(309)
|
0
|
0
|
(309)
|
0
|
0
|
| Exercise of stock options |
|
2
|
0
|
2
|
0
|
0
|
0
|
| Share-based compensation |
|
26
|
0
|
26
|
0
|
0
|
0
|
| Purchases of treasury stock |
|
(992)
|
0
|
0
|
0
|
0
|
(992)
|
| Treasury stock reissued |
|
19
|
0
|
13
|
0
|
0
|
6
|
| Balance, end of period at Jun. 30, 2026 |
|
30,312
|
136
|
3,105
|
56,218
|
2,681
|
(31,828)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
| Net earnings |
|
303
|
0
|
0
|
303
|
0
|
0
|
| Unrealized foreign currency translation gains (losses) during period, net of income taxes |
|
123
|
0
|
0
|
0
|
123
|
0
|
| Unrealized gains (losses) on fixed maturity securities during period, net of income taxes and reclassification adjustments |
|
(2,242)
|
0
|
0
|
0
|
(2,242)
|
0
|
| Unrealized gains (losses) on derivatives during period, net of income taxes |
|
0
|
0
|
0
|
0
|
0
|
0
|
| Effect of changes in discount rate assumptions during period, net of income taxes |
|
1,849
|
0
|
0
|
0
|
1,849
|
0
|
| Pension liability adjustment during period, net of income taxes |
|
2
|
0
|
0
|
0
|
2
|
0
|
| Dividends to shareholders |
[1] |
(306)
|
0
|
0
|
(306)
|
0
|
0
|
| Exercise of stock options |
|
0
|
0
|
0
|
0
|
0
|
0
|
| Share-based compensation |
|
36
|
0
|
36
|
0
|
0
|
0
|
| Purchases of treasury stock |
|
(812)
|
0
|
0
|
0
|
0
|
(812)
|
| Treasury stock reissued |
|
18
|
0
|
12
|
0
|
0
|
6
|
| Balance, end of period at Sep. 30, 2026 |
|
$ 29,283
|
$ 136
|
$ 3,153
|
$ 56,215
|
$ 2,413
|
$ (32,634)
|
|
|