Financial Instruments (Details 2) (Foreign Exchange Forward [Member], Level 2 [Member], Fair Value, Measurements, Recurring [Member], USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Foreign Exchange Forward [Member] \| Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Foreign Currency Contract Asset At Fair Value	$ 0	$ 2

Name:

us-gaap_ForeignCurrencyContractAssetFairValueDisclosure

Namespace Prefix:

us-gaap

Data Type:

xbrli:monetaryItemType

Balance Type:

debit

Period Type:

instant