Long-Term Debt and Credit Facilities - Long-Term Debt Maturities (Details) $ in Millions	Dec. 31, 2021 USD ($)
Long-term Debt and Credit Facilities
2022	$ 1,554
2023	977
2024	1,158
2025	3,127
2026	2,062
2027 and thereafter	20,303
Total long-term debt	29,181
Disposal Group, Held-for-sale, Not Discontinued Operations
Long-term Debt and Credit Facilities
Total long-term debt	$ 1,500

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