Related Party Transactions (Shared Service and Overhead Allocations - Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Insurance Commissions and Fees	$ 716	$ 725	$ 2,114	$ 2,190
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	249	274	766	846
Related Party Transaction, Amounts of Transaction	23	0	65	0
Affiliated Entity
Insurance Commissions and Fees	54	$ 56	157	$ 165
All Services and Transactions Except Broker Dealer Activities [Member]
Due from (to) Related Parties	$ 5		$ 5		$ (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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Amount of transactions with related party during the financial reporting period.

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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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