Reinsurance (Earned Life Insurance Premiums On Ceded Business) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Direct premiums earned	$ 5,985	$ 5,681	$ 5,251
Ceded earned premiums	(290)	(276)	(230)
Insurance losses and contract holders' benefits	4,134	3,638	3,490
Life Insurance Segment
Direct premiums earned	362	341	320
Ceded earned premiums	(73)	(71)	(70)
Net earned premiums	289	270	250
Direct contract holders' benefits incurred	359	359	328
Ceded contract holders' benefits incurred	(62)	(73)	(61)
Insurance losses and contract holders' benefits	$ 297	$ 286	$ 267

Amount of earned premiums ceded to other entities.

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