Segment Information - Reconciliation of Benefits and Expenses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Total benefits and expenses	$ 2,700	$ (917)	$ 2,404	$ (712)
Operating Segments
Segment Reporting Information [Line Items]
Total operating benefits and expenses	1,340	1,254	3,885	3,747
Segment Reconciling Items
Segment Reporting Information [Line Items]
Net (gain) loss on market risk benefits	1,172	(2,376)	(2,062)	(5,120)
Benefits attributed to guaranteed benefit features	53	57	171	211
Amortization of DAC related to non-operating revenues and expenses	$ 135	$ 148	$ 410	$ 450