Derivative Financial Instruments (Schedule of Derivative Instruments, Notional Amounts and Fair Values) (Details) - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative, Notional Amount	[1]	$ 4,794	$ 5,164
Other Assets		16	34
Accrued Liabilities		(315)	(138)
Netting Arrangements, Other Assets		(14)	(20)
Netting Arrangements, Accrued Liabilities		14	20
Net Recorded balance, Other Assets		2	14
Net Recorded balance, Accrued Liabilities		(301)	(118)
Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount		3,233	2,590
Other Assets		7	29
Accrued Liabilities		(165)	(60)
Designated as Hedging Instrument | Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount		366	645
Other Assets		2	4
Accrued Liabilities		(119)	(72)
Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount		399	285
Other Assets		7	1
Accrued Liabilities		(6)	(6)
Not Designated as Hedging Instrument | Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount		796	$ 1,644
Accrued Liabilities		$ (25)

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