Consolidated and Nonconsolidated Investment Entities - Fair Value Hierarchy (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
VIEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Collateralized loan obligations notes, at fair value using the fair value option	$ 1,101	$ 1,332
Assets measured on recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	4,719	4,446
Liabilities	1,101	1,332
Assets measured on recurring basis | VIEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	113	181
Loans Receivable, Fair Value Disclosure	1,434	1,404
NAV		2,861
Other Investments, Fair Value Disclosure	53
Collateralized loan obligations notes, at fair value using the fair value option	1,101	1,332
Assets measured on recurring basis | VIEs | Limited Partnerships/Corporations, at fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
NAV	3,067
Assets measured on recurring basis | VOEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	2
Assets measured on recurring basis | VOEs | Cash and cash equivalents
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Investments, Fair Value Disclosure	50
Assets measured on recurring basis | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	115	181
Assets measured on recurring basis | Level 1 | VIEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	113	181
Assets measured on recurring basis | Level 1 | VOEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	2
Assets measured on recurring basis | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	1,434	1,404
Liabilities	1,101	1,332
Assets measured on recurring basis | Level 2 | VIEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans Receivable, Fair Value Disclosure	1,434	1,404
Collateralized loan obligations notes, at fair value using the fair value option	1,101	1,332
Assets measured on recurring basis | Level 2 | VIEs | Limited Partnerships/Corporations, at fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets		0
Assets measured on recurring basis | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	53
Assets measured on recurring basis | Level 3 | VIEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Investments, Fair Value Disclosure	53
Assets measured on recurring basis | Fair Value Measured at Net Asset Value Per Share [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	3,117	2,861
Assets measured on recurring basis | Fair Value Measured at Net Asset Value Per Share [Member] | VIEs
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
NAV	$ 3,067	$ 2,861