Derivative Financial Instruments (Schedule of Derivative Instruments, Notional Amounts and Fair Values) (Details) - USD ($) $ in Millions		Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Derivative, Notional Amount	[1]	$ 4,944	$ 5,164
Other Assets		34	34
Accrued Liabilities		(200)	(138)
Netting Arrangements, Other Assets		(17)	(20)
Netting Arrangements, Accrued Liabilities		17	20
Net Recorded balance, Other Assets		17	14
Net Recorded balance, Accrued Liabilities		(183)	(118)
Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount		3,022	2,590
Other Assets		15	29
Accrued Liabilities		(94)	(60)
Designated as Hedging Instrument | Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount		354	645
Other Assets		3	4
Accrued Liabilities		(81)	(72)
Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount		641	285
Other Assets		16	1
Accrued Liabilities		(9)	(6)
Not Designated as Hedging Instrument | Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount		927	$ 1,644
Accrued Liabilities		$ (16)

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