Reinsurance - Life Insurance Ceded Business (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Reinsurance for Insurance Companies, by Product Segment
Insurance losses and contract holders' benefits	$ 1,418	$ 1,072	$ 3,766	$ 2,990
Life Insurance Segment
Reinsurance for Insurance Companies, by Product Segment
Direct earned premiums	92	93	278	278
Ceded earned premiums	(19)	(20)	(57)	(57)
Earned premiums	73	73	221	221
Direct contract holders' benefits incurred	93	103	298	310
Ceded contract holders' benefits incurred	(23)	(19)	(76)	(61)
Insurance losses and contract holders' benefits	$ 70	$ 84	$ 222	$ 249

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Amount of earned premiums ceded to other entities.

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