Deferred Policy Acquisition Costs, Value of Business Acquired, Unearned Revenue and Other Intangibles (VODA and VOCRA) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Insurance [Abstract]
Balance at January 1,	$ 794	$ 876	$ 972
Amortization	(85)	(88)	(92)
Effect of foreign currency translation and other	1	6	(4)
Balance at December 31,	710	794	876
Accumulated amortization	$ 840	$ 755	$ 667