Derivatives and Hedging Activities (Impact Of Derivative Instruments In Consolidated Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 34		$ 23
Derivative assets	39		9
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	34		21
Derivative assets	37		7
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0		2
Derivative assets	2		2
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0		0
Derivative assets	0		1	[1]
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0		1	[2]
Derivative assets	0		0
Energy Related Derivative [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0		1	[2]
Derivative assets	2	[1]	0
Embedded Derivative [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0		0
Derivative assets	0		1	[1]
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	33	[3]	21	[4]
Derivative assets	37	[5]	7	[6]
Fair Value Hedging [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	1	[7]	0
Derivative assets	$ 0		$ 0

[1] Included in Other current assets in the accompanying consolidated balance sheet.

[2] Included in Other accrued liabilities in the accompanying consolidated balance sheet.

[3] Includes $24 million recorded in Other accrued liabilities and $9 million recorded in Other liabilities in the accompanying consolidated balance sheet.

[4] Includes $20 million recorded in Other accrued liabilities and $1 million recorded in Other liabilities in the accompanying consolidated balance sheet.

[5] Includes $23 million recorded in Other current assets and $14 million recorded in Deferred charges and other assets in the accompanying consolidated balance sheet.

[6] Includes $3 million recorded in Other current assets and $4 million recorded in Deferred charges and other assets in the accompanying consolidated balance sheet.

[7] Included in Other liabilities in the accompanying consolidated balance sheet.