Segment Information (Premiums, Universal Life and Investment-Type Product Policy Fees and Other Revenues by Major Product Group) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Total premiums, universal life and investment-type product policy fees and other revenues	$ 864	$ 862	$ 1,694	$ 1,727
Annuity products
Segment Reporting [Line Items]
Total premiums, universal life and investment-type product policy fees and other revenues	578	577	1,162	1,168
Life insurance products
Segment Reporting [Line Items]
Total premiums, universal life and investment-type product policy fees and other revenues	278	280	519	556
Other products
Segment Reporting [Line Items]
Total premiums, universal life and investment-type product policy fees and other revenues	$ 8	$ 5	$ 13	$ 3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details