Derivative Financial Instruments (Schedule of Derivative Instruments, Notional Amounts and Fair Values) (Details) - USD ($) $ in Millions		Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative, Notional Amount	[1]	$ 4,937	$ 4,671
Other Assets		98	107
Accrued Liabilities		(75)	(100)
Netting Arrangements, Other Assets		(37)	(31)
Netting Arrangements, Accrued Liabilities		37	31
Net Recorded balance, Other Assets		61	76
Net Recorded balance, Accrued Liabilities		(38)	(69)
Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount		2,800	2,594
Other Assets		59	81
Accrued Liabilities		(39)	(24)
Designated as Hedging Instrument | Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount		416	404
Other Assets		16	4
Accrued Liabilities		(7)	(43)
Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount		832	769
Other Assets		22	22
Accrued Liabilities		(6)	(16)
Not Designated as Hedging Instrument | Commodity Contract
Derivative [Line Items]
Derivative, Notional Amount		889	904
Other Assets		1
Accrued Liabilities		$ (23)	$ (17)

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