CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions		Total		Common Shares	Additional Paid-In Capital	Retained Earnings	Treasury Shares	Accumulated Other Comprehensive Income (Loss)	Cumulative effect of adoption of long-duration contracts guidance	Cumulative effect of adoption of long-duration contracts guidance Retained Earnings	Cumulative effect of adoption of long-duration contracts guidance Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2020				116,765,613
Beginning balance at Dec. 31, 2020		$ 6,131		$ 3	$ 8,822	$ 15,292	$ (18,879)	$ 893	$ (1,897)	$ (860)	$ (1,037)
Increase (Decrease) in Stockholders' Equity
Net income		3,417	[1],[2]			3,417
Other comprehensive income (loss), net of tax		(498)	[3]					(498)
Dividends to shareholders		(527)				(527)
Repurchase of common shares (in shares)				(8,744,127)
Repurchase of common shares		(2,222)					(2,222)
Share-based compensation plans (in shares)				2,839,524
Share-based compensation plans		433			398		35
Ending balance (in shares) at Dec. 31, 2021	[4]			110,861,010
Ending balance at Dec. 31, 2021	[4]	4,837		$ 3	9,220	17,322	(21,066)	(642)
Increase (Decrease) in Stockholders' Equity
Net income		3,149	[1],[2]			3,149
Other comprehensive income (loss), net of tax		(1,904)	[3]					(1,904)
Dividends to shareholders		(553)				(553)
Repurchase of common shares (in shares)				(7,371,332)
Repurchase of common shares		(2,095)					(2,095)
Share-based compensation plans (in shares)				1,789,312
Share-based compensation plans		369			297		72
Ending balance (in shares) at Dec. 31, 2022	[4]			105,278,990
Ending balance at Dec. 31, 2022	[4]	3,803	[5]	$ 3	9,517	19,918	(23,089)	(2,546)
Increase (Decrease) in Stockholders' Equity
Net income		2,556				2,556
Other comprehensive income (loss), net of tax		780						780
Dividends to shareholders		(569)				(569)
Repurchase of common shares (in shares)				(6,659,042)
Repurchase of common shares		(2,212)					(2,212)
Share-based compensation plans (in shares)				1,553,264
Share-based compensation plans		371			307		64
Ending balance (in shares) at Dec. 31, 2023				100,173,212
Ending balance at Dec. 31, 2023		$ 4,729		$ 3	$ 9,824	$ 21,905	$ (25,237)	$ (1,766)

[1] Certain prior period amounts have been restated. See Note 3 for more information.

[2] Certain prior period amounts have been restated. See Note 3 for more information.

[3] Certain prior period amounts have been restated. See Note 3 for more information.

[4] Certain prior period amounts have been restated. See Note 3 for more information.

[5] Certain prior period amounts have been restated. See Note 3 for more information.