Assets Held For Sale (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Assets Held For Sale [Abstract]
Assets held for sale	$ 201	$ 580

Amount classified as long lived assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

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

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Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationLongLivedAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant