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, 2021	Dec. 31, 2020	Dec. 31, 2019
DSI:
Balance at January 1,	$ 108	$ 158	$ 210
Capitalization	0	6	7
Amortization	(14)	(37)	(39)
Unrealized investment gains (losses)	20	(18)	(20)
Effect of foreign currency translation and other	(7)	(1)	0
Balance at December 31,	$ 107	$ 108	$ 158