Derivative Financial Instruments (Schedule of Derivative Instruments, Notional Amounts and Fair Values) (Details) - USD ($) $ in Millions		Sep. 30, 2016	Dec. 31, 2015
Derivative [Line Items]
Notional amounts	[1]	$ 3,576	$ 4,053
Other Assets		88	38
Accrued Liabilities		(196)	(328)
Netting Arrangements, Other Assets		(52)	(23)
Netting Arrangements, Accrued Liabilities		52	23
Net Recorded balance, Other Assets		36	15
Net Recorded balance, Accrued Liabilities		(144)	(305)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amounts		2,211	2,727
Other Assets		62	23
Accrued Liabilities		(177)	(304)
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Notional amounts		125	125
Other Assets		9	9
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Notional amounts		39	40
Other Assets		1	2
Accrued Liabilities		(5)	(13)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional amounts		526	436
Other Assets		16	4
Accrued Liabilities		(14)	(11)
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Notional amounts		$ 675	$ 725

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