Supplementary Disclosure of Condensed Consolidated Cash Flow Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Cash Equivalents, Restricted Cash and Restricted Cash Equivalents:
Cash	$ 2,827	[1]	$ 2,856	[1]	$ 2,873
Total cash and restricted cash shown in the Consolidated Statements of Cash Flows	3,230		3,287		3,358
Cash paid during the period for:
Interest	1,147		1,326		1,312
Taxes	975		252		154
Cash Flow, Noncash Investing Activities Disclosure
Fixed maturity securities available for sale received in connection with pension risk transfer transactions	1,140		1,072		0
Fixed maturity securities received in connection with reinsurance transactions	362		0		0
Fixed maturity securities transferred in connection with reinsurance transactions	(266)		0		0
Cash Flow, Noncash Financing Activities Disclosure
Interest credited to policyholder contract deposits included in financing activities	3,734		3,792		3,574
Fee income debited to policyholder contract deposits included in financing activities	(1,710)		(1,733)		(1,701)
Other assets
Cash Equivalents, Restricted Cash and Restricted Cash Equivalents:
Restricted cash	223		243		343
Short-term investments
Cash Equivalents, Restricted Cash and Restricted Cash Equivalents:
Restricted cash	$ 180		$ 188		$ 142

[1] See Note 10 for details of balances associated with variable interest entities.