Derivative Financial Instruments (Schedule Of Notional Amounts And Fair Values Of Derivative Instruments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Derivative [Line Items]
Notional amounts	$ 3,064	[1]	$ 3,177	[1]
Other assets	41		149
Accrued liabilities	(233)		(142)
Derivative Liability, Fair Value, Amount Offset Against Collateral	(16)		(63)
Derivative Asset, Fair Value, Amount Offset Against Collateral	16		63
Net recorded balance, Other assets	25		86
Net recorded balance, Accrued liabilities	(217)		(79)
Foreign Exchange Contracts [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amounts	2,586	[1]	2,524	[1]
Other assets	9		122
Accrued liabilities	(204)		(64)
Foreign Exchange Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amounts	319	[1]	259	[1]
Other assets	21		12
Accrued liabilities	(5)		(35)
Interest Rate Contracts [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amounts	125	[1]	313	[1]
Other assets	10		13
Commodity Contracts [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amounts	31	[1]	72	[1]
Other assets	1		2
Accrued liabilities	(24)		(39)
Commodity Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amounts	3	[1]	9	[1]
Accrued liabilities			$ (4)

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