Financial Instruments (Pre-Tax Effect of Foreign Exchange Contracts Designated as Cash Flow Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings/(Losses) on Derivatives	$ (24)	$ 96
Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Higher Remaining Maturity Range	13 months
Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings/(Losses) on Derivatives	(24)	96
Foreign Exchange Contract [Member] | Other Comprehensive Income (Loss) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings/(Losses) on Derivatives	(24)	96
Foreign Exchange Contract [Member] | Other Comprehensive Income (Loss) [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings/(Losses) on Derivatives	(27)	109
Foreign Exchange Contract [Member] | Net revenues [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	15	41
Foreign Exchange Contract [Member] | Net revenues [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	15	41
Foreign Exchange Contract [Member] | Cost of sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	0	3
Foreign Exchange Contract [Member] | Cost of sales [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	0	3
Foreign Exchange Contract [Member] | Interest expense, net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	(9)	(9)
Foreign Exchange Contract [Member] | Interest expense, net [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	(7)	(9)
Foreign Exchange Contract [Member] | Earnings before income taxes [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	6	35
Foreign Exchange Contract [Member] | Earnings before income taxes [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Other Comprehensive Earnings/(Losses) into Earnings	$ 8	$ 35