Fair Value Measurements and Financial Instruments - Fair Value of Derivative Instruments and Other Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Designated derivative instruments
Derivative asset	$ 49	$ 29
Derivative liability	27	93
Other financial instruments
Investments fair value	34	37
Other assets | Interest rate swap contracts
Designated derivative instruments
Derivative asset	0	14
Other assets | Forward-starting interest rate swaps
Designated derivative instruments
Derivative asset	20	5
Other current assets
Other financial instruments
Marketable securities	34	37
Other current assets | Interest rate swap contracts
Designated derivative instruments
Derivative asset	5	0
Other current assets | Foreign currency contracts
Designated derivative instruments
Derivative asset	22	7
Other current assets | Commodity contracts
Designated derivative instruments
Derivative asset	2	3
Other liabilities | Interest rate swap contracts
Designated derivative instruments
Derivative liability	0	0
Other liabilities | Forward-starting interest rate swaps
Designated derivative instruments
Derivative liability	21	0
Other accruals | Interest rate swap contracts
Designated derivative instruments
Derivative liability	0	0
Other accruals | Foreign currency contracts
Designated derivative instruments
Derivative liability	6	93
Other accruals | Commodity contracts
Designated derivative instruments
Derivative liability	$ 0	$ 0