Hedging Activities (Effect on Consolidated Financial Statements) (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Gain (loss) reclassified from accumulated OCI into income	$ (3)	$ 3	$ (11)	$ 5
Sales [Member]
Gain (loss) reclassified from accumulated OCI into income	(3)		(2)
Cost of Sales [Member]
Gain (loss) reclassified from accumulated OCI into income		3	5	5
Other Expense [Member]
Gain (loss) reclassified from accumulated OCI into income			(14)
Cash Flow Hedging [Member]
Gain (loss) recognized in other comprehensive income (OCI)	22	(3)	(67)	6
Foreign Exchange Contracts [Member] | Cash Flow Hedging [Member]
Gain (loss) recognized in other comprehensive income (OCI)	$ 22	$ (3)	$ (67)	$ 6