Deferred Policy Acquisition Costs, Value of Business Acquired and Other Policy-Related Intangibles (DAC and VOBA) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net [Abstract]
Beginning Balance of DAC	$ 4,339	$ 3,870	$ 4,327
Capitalizations of DAC	425	492	406
Net investment gains (losses) of DAC and net derivative gains (losses)	(381)	68	105
Other expenses of DAC	(427)	(179)	(776)
Total amortization of DAC	(808)	(111)	(671)
Unrealized investment gains (losses) of DAC	655	88	(192)
Ending Balance of DAC	4,611	4,339	3,870
Beginning Balance of VOBA	512	487	482
Amortization	(63)	6	(25)
Unrealized investment gains (losses) of VOBA	124	19	30
Ending Balance of VOBA	573	512	487
Ending Balance of DAC and VOBA	$ 5,184	$ 4,851	$ 4,357