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Fair Value of Financial Instruments - NAV (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Investments in unconsolidated affiliates	$ 2,835	$ 2,486
Investments measured under equity method or NAV expedient	2,879	2,534
Fair Value Measured at Net Asset Value
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Equity securities (NAV)	44	48
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Investments in unconsolidated affiliates	167	136
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Fair Value Measured at Net Asset Value
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Investments in unconsolidated affiliates	$ 2,668	$ 2,350

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Investments Measured Under Equity Method Or Net Asset Value Expedient

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