Separate Accounts (Aggregate FV of Assets Supporting Separate Accounts) (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Separate Account, Liability [Line Items]
Separate account assets	$ 78,825	$ 79,006
Equity securities
Separate Account, Liability [Line Items]
Separate account assets	78,611	78,793
Fixed maturity securities
Separate Account, Liability [Line Items]
Separate account assets	211	207
Cash and cash equivalents
Separate Account, Liability [Line Items]
Separate account assets	0	2
Other assets
Separate Account, Liability [Line Items]
Separate account assets	$ 3	$ 4