Derivative and Other Financial Instruments (Accumulated Other Comprehensive Income ("AOCI") and Earnings from Changes in Fair Value Related to Derivative Instruments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss), recognized in OCI	$ (35)	$ 41
Gain/(loss), reclassified from from AOCI, tax	(6)	(8)
Gain/(loss), reclassification, after tax	15	21
Foreign exchange
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss), recognized in OCI	(3)	2
Foreign exchange | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain/ (loss), reclassified from AOCI into income	(11)	(8)
Foreign exchange | Cost of products sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain/ (loss), reclassified from AOCI into income	6	6
Commodities
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(loss), recognized in OCI	(32)	39
Gain/ (loss), reclassified from AOCI into income	21	29
Commodities | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain/ (loss), reclassified from AOCI into income	(5)	0
Commodities | Cost of products sold
Derivative Instruments, Gain (Loss) [Line Items]
Gain/ (loss), reclassified from AOCI into income	$ 31	$ 31