Variable Interest Entities - Investment Entities Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Dec. 31, 2023
VIEs, not primary beneficiary
Variable interest entities
Obligation to provide financial or other support to VIEs	$ 0
VIEs, not primary beneficiary \| Property Funds, Non-U.S. Series Funds, Hedge Funds and other Private Funds, and Affordable Housing Partnerships and Other Real Estate Partnerships
Variable interest entities
Maximum loss exposure	180	$ 168
Other investments	180	168
Consolidated investment entities \| Unfunded commitments
Variable interest entities
Loans	$ 24	$ 24

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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Amount of investments classified as other.

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The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

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