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Investments (Unconsolidated Equity Investments) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Schedule of Equity Method Investments [Line Items] |  |
Equity (income) loss from unconsolidated investments, net | $ (15) | $ (17)
ATC Holdings [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Equity (income) loss from unconsolidated investments, net | (12) | (13)
Other [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Equity (income) loss from unconsolidated investments, net | (3) | (4)
Total [Member] |  |
Schedule of Equity Method Investments [Line Items] |  |
Equity (income) loss from unconsolidated investments, net | $ (15) | $ (17)

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