Financial Instruments, Derivatives and Fair Value Measures - Location of Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivative instruments and fair value
Fair Value - Assets	$ 379	$ 300
Fair Value - Liabilities	618	1,075
Designated as hedging instrument | Interest rate swaps | Deferred income taxes and other assets | Fair value hedges
Derivative instruments and fair value
Fair Value - Assets	87	210
Designated as hedging instrument | Foreign currency forward exchange contracts | Other prepaid expenses and receivables
Derivative instruments and fair value
Fair Value - Assets	222	30
Designated as hedging instrument | Foreign currency forward exchange contracts | Other accrued liabilities
Derivative instruments and fair value
Fair Value - Liabilities	65	433
Designated as hedging instrument | Debt | Long-term Debt | Net investment hedges
Derivative instruments and fair value
Fair Value - Liabilities	521	577
Not designated as hedging instrument | Foreign currency forward exchange contracts | Other prepaid expenses and receivables
Derivative instruments and fair value
Fair Value - Assets	70	60
Not designated as hedging instrument | Foreign currency forward exchange contracts | Other accrued liabilities
Derivative instruments and fair value
Fair Value - Liabilities	$ 32	$ 65