Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
VOBA amortization	$ 169	$ 180	$ 195
DAC amortization	(186)	(99)	(46)
DSI amortization	22	14	7
Amortization of intangible assets	152	$ 134	$ 136
Expected amortization, 2024	126
Expected amortization, 2025	101
Expected amortization, 2026	78
Expected amortization, 2027	61
Expected amortization, 2028	$ 47

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization expense (reversal of expense) for present value of future profits of insurance contract acquired in business combination.

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