Goodwill and Intangible Assets, Net Definite-lived and Indefinite-lived Intangible Assets Table (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Definite-lived intangible assets: [Abstract]
Gross Carrying Amount	$ 1,305	$ 1,262
Accumulated Amortization	(512)	(433)
Net Carrying Value	793us-gaap_FiniteLivedIntangibleAssetsNet	829us-gaap_FiniteLivedIntangibleAssetsNet
Indefinite-lived intangible assets: [Abstract]
Net Carrying Value	295	284
Intangible assets, net	1,088	1,113
Customer relationships
Definite-lived intangible assets: [Abstract]
Gross Carrying Amount	957	914
Accumulated Amortization	(345)	(291)
Net Carrying Value	612	623
Developed technology
Definite-lived intangible assets: [Abstract]
Gross Carrying Amount	120	120
Accumulated Amortization	(77)	(67)
Net Carrying Value	43	53
In-place leases
Definite-lived intangible assets: [Abstract]
Gross Carrying Amount	121	121
Accumulated Amortization	(63)	(53)
Net Carrying Value	58	68
Gasification technology license
Definite-lived intangible assets: [Abstract]
Gross Carrying Amount	60	60
Accumulated Amortization	(7)	(4)
Net Carrying Value	53	56
Other
Definite-lived intangible assets: [Abstract]
Gross Carrying Amount	47	47
Accumulated Amortization	(20)	(18)
Net Carrying Value	27	29
Trademarks and brand names
Indefinite-lived intangible assets: [Abstract]
Net Carrying Value	257	255
Gaming licenses
Indefinite-lived intangible assets: [Abstract]
Net Carrying Value	$ 38	$ 29

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph ((a)(1),(b))

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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