Derivative Financial Instruments (Schedule of Derivative Instruments, Notional Amounts and Fair Values) (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative, Notional Amount	[1]	$ 6,064	$ 4,481
Other Assets		27	52
Accrued Liabilities		(216)	(136)
Netting Arrangements, Other Assets		(20)	(24)
Netting Arrangements, Accrued Liabilities		20	24
Net Recorded balance, Other Assets		7	28
Net Recorded balance, Accrued Liabilities		(196)	(112)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount		2,733	3,407
Other Assets		17	32
Accrued Liabilities		(105)	(132)
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount		125	125
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount		669	57
Other Assets		4	9
Accrued Liabilities		(93)	(2)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount		824	414
Other Assets		6	11
Accrued Liabilities		(18)	(2)
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 1,713	$ 478

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