Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Assets
Amortized cost of fixed maturity securities available-for-sale	$ 69,483	$ 63,083
Fixed maturity securities, allowance for credit losses	2	0
Mortgage loans valuation allowances	94	64
Leveraged leases, allowance for credit losses	13	0
Premiums, reinsurance and other, allowance for credit loss	$ 10	$ 0
Equity
Common stock, par value	$ 25,000	$ 25,000
Common stock, shares authorized	4,000	4,000
Common stock, shares, issued	3,000	3,000
Common stock, shares, outstanding	3,000	3,000