Financial Instruments (Cash Flow and Net Investment Hedging Activities Effect on Condensed Consolidated Statements of Earnings and Other Comprehensive Earnings) (Details) - Derivative Contract [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings/(Losses) on Derivatives in Cash Flow Hedging Relationship	$ (38)	$ (16)	$ (45)	$ (39)
Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings/(Losses) on Derivatives in Net Investment Hedging Relationship	(321)	419	(52)	564
Total Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings/(Losses) on Derivatives	(359)	403	(97)	525
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	1	(13)	18	15
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Earnings	11	31	59	79
Net Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	0	(7)	4	22
Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	0	0	7	0
Marketing Administration And Research Costs [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	4	(4)	15	(3)
Interest Expense, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	(3)	(2)	(8)	(4)
Interest Income Expense Net [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Earnings	$ 11	$ 31	$ 59	$ 79