Variable Interest Entities - Investment Entities Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
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	168	$ 174
Other investments	168	174
Consolidated investment entities \| Unfunded commitments
Variable interest entities
Loans	$ 24	$ 30

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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