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Investments (Unconsolidated Equity Investments) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity (income) loss from unconsolidated investments, net | $ (5) | $ (13) | $ (37) | $ (47)
ATC Holdings [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity (income) loss from unconsolidated investments, net | (7) | (12) | (29) | (34)
Other [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity (income) loss from unconsolidated investments, net | 2 | (1) | (8) | (13)
Total [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity (income) loss from unconsolidated investments, net | $ (5) | $ (13) | $ (37) | $ (47)

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