Financial Instruments and Fair Value - Schedule of Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Commodity contracts | Commodity price hedge contracts designated as cash flow hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount of gain (loss) recognized in accumulated OCI or OCL (effective portion)	$ (1)	$ 5		$ 2
Foreign Currency | Foreign currency borrowings designated as a net investment hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount of gain (loss) recognized in accumulated OCI or OCL (effective portion)	$ 0	$ (16)	$ 11	$ (2)