Deferred Policy Acquisition Costs, Value of Business Acquired and Other Policy-Related Intangibles (Deferred Sales Inducements) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
DSI:
Balance at January 1,	$ 107	$ 108	$ 158
Capitalization	3	0	6
Amortization	(32)	(14)	(37)
Unrealized investment gains (losses)	59	20	(18)
Effect of foreign currency translation and other	(2)	(7)	(1)
Balance at December 31,	$ 135	$ 107	$ 108