Derivative Instruments And Hedging Strategies Forward Currency Exchange Contracts (Details) (USD $)	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
Forward currency exchange contracts to purchase various currencies	$ 1,577	$ 1,379
Forward currency exchange contracts assets, fair value	1	2
Forward currency exchange contracts liabilities, fair value	$ 9	$ 1
Forward currency exchange contracts original maturities, maximum days	119	99

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities on the balance sheet.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624163-113959

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant