Fair Value of Financial Instruments - Narrative (Details) $ in Millions	Mar. 31, 2026 USD ($) $ / Contract	Dec. 31, 2025 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in unconsolidated affiliates (2026 and 2025 includes $270 and $262 related to investments held by consolidated variable interest entities ("VIEs") and 2026 and 2025 include certain investments at fair value of $260 and $270, respectively)	$ 5,299	$ 5,166
Title
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in unconsolidated affiliates (2026 and 2025 includes $270 and $262 related to investments held by consolidated variable interest entities ("VIEs") and 2026 and 2025 include certain investments at fair value of $260 and $270, respectively)	$ 286	$ 288
Credit linked note \| Valuation, Income Approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, strike price \| $ / Contract	0

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.