Derivative Financial Instruments (Schedule of Derivative Instruments, Notional Amounts and Fair Values) (Details) - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Notional amounts	[1]	$ 4,123	$ 3,064
Other assets		25	41
Accrued liabilities		(353)	(233)
Netting arrangements, Accrued liabilities		(9)	(16)
Netting arrangements, Other assets		9	16
Derivatives, Assets		16	25
Derivatives, Liabilities		(344)	(217)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amounts		2,793	2,586
Other assets		8	9
Accrued liabilities		(326)	(204)
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Notional amounts		125	125
Other assets		11	10
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Notional amounts		$ 16	31
Other assets			1
Accrued liabilities		$ (14)	(24)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amounts		399	319
Other assets		6	21
Accrued liabilities		(13)	(5)
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Notional amounts		$ 790	$ 3

[1] Notional amounts represent the gross contract/notional amount of the derivatives outstanding.