Deferred Acquisition Costs and Deferred Sales Inducement Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Balances of and changes in DAC
Beginning balance	$ 2,782	$ 2,532
Capitalization of acquisition costs	53	65
Amortization	(96)	(5)
Impact of change in net unrealized (gains) losses on securities	189	93
Ending balance	2,928	2,685
Balances of and changes in DSIC
Beginning balance	189	189
Amortization	(8)	(3)
Impact of change in net unrealized (gains) losses on securities	6	4
Ending balance	$ 187	$ 190