Condensed Financial Information (Parent Company) (Condensed Balance Sheets Insets) (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Condensed Balance Sheet Statements, Captions [Line Items]
Amortized cost of fixed maturity securities available-for-sale	$ 85,907	$ 86,565
Fixed maturity securities, allowance for credit losses	62	79	$ 21
Mortgage loans, allowance for credit losses	200	178
Premiums, reinsurance and other, allowance for credit losses	$ 3	$ 3
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
Parent Company
Condensed Balance Sheet Statements, Captions [Line Items]
Amortized cost of fixed maturity securities available-for-sale	$ 71,076	$ 72,741
Fixed maturity securities, allowance for credit losses	61	78
Mortgage loans, allowance for credit losses	191	172
Premiums, reinsurance and other, allowance for credit losses	$ 3	$ 3
Common stock, par value	$ 25,000	$ 25,000
Common stock, shares authorized	4,000
Common stock, shares, issued	3,000
Common stock, shares, outstanding	3,000