Derivative Instruments and Hedging Activities (Assets and Liabilities - Current vs. Noncurrent Derivative instruments) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Total asset derivatives	$ 233	$ 189
Total liability derivatives	384	679
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Current	83	236
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Current	$ 85	$ 51

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+ References

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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