Related Party Transactions - Operating Agreements and Investment Advisory and Other Fees (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Earning related to agreements	$ 993	$ 979	$ 1,088
Voya Investment Management LLC
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	64	68	69
Earning related to agreements	52	56	67
Voya Services Company
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	457	454	505
Voya Financial Advisors, Inc
Related Party Transaction [Line Items]
Commission expenses incurred	72	72	84
Affiliated entity \| Voya Financial Partners, LLC (VFP)
Related Party Transaction [Line Items]
Distribution revenues	$ 24	$ 26	$ 31

Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products.

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