Financing Arrangements and Derivative Financial Instruments - Classification of Changes in Fair Values of Foreign Currency Contracts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Cash flow hedge gain (loss) to be reclassified within twelve months	$ 2
Foreign Exchange Contract
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Amount of gains (losses) deferred to AOCL	15	$ 10	$ 9
Foreign Exchange Contract | Cost of Goods Sold
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Reclassification adjustment for amounts recognized in CGS	$ (13)	$ (14)	$ 7