Financing Agreements (Details) - Voya Financial, Inc. - Reciprocal Loan Agreement - Related Party - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Affiliated entity
Debt Instrument [Line Items]
Other Receivables	$ 295	$ 0
Interest Income, Operating	18	5	$ 1
Other Receivables	295	0
Loans Payable
Debt Instrument [Line Items]
Accounts Payable, Other	$ 31	$ 31