Related Party Transactions Related Party Transaction (Shared Service and Overhead Allocations - Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Insurance Commissions and Fees	$ 701	$ 730
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	256	289
Related Party Transaction, Amounts of Transaction	22	(6)
Affiliated Entity
Insurance Commissions and Fees	53	$ 54
All Services and Transactions Except Broker Dealer Activities [Member]
Due from (to) Related Parties	$ (47)		$ (43)

Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products.

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