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Summary of Net Operating Income (Loss) for Segments and Corporate and Other (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Adjustment for the portion of (gains) losses on the early extinguishment of debt attributable to noncontrolling interests	$ 2		$ 2
Net Investment (Gains) Losses
Segment Reporting Information [Line Items]
Adjustment for portion of net investment (gains) losses attributable to noncontrolling interests	1	$ 2	2	$ 2
Changes in fair value of market risk benefits and associated hedges
Segment Reporting Information [Line Items]
Adjustment for changes in reserves, attributed fees and benefit payments	$ (2)	$ (4)	$ (5)	$ (7)

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- Definition

Adjustment to changes in fair value of market risk benefits and associated hedges to exclude changes in reserves, attributed fees and benefit payments, before taxes, to arrive at net operating income (loss).

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- Definition

Adjustment to net investment (gains) losses for portion of net investment gains (losses) attributable to noncontrolling interests, before taxes, to arrive at net operating income (loss).

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