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Long-lived assets that are held for sale apart from normal operations and anticipated to be sold in less than one year.

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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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The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for assets of a disposal group, including a component of the entity (discontinued operation), to be sold or that has been disposed of through sale, as of the financial statement date.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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Drilling Fleet (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Dispositions
Net cash proceeds from sale of assets	$ 7	$ 91
Loss on disposal of assets, net	(7)us-gaap_GainLossOnDispositionOfAssets	(3)us-gaap_GainLossOnDispositionOfAssets
Aggregate carrying amount of assets held for sale			25us-gaap_AssetsHeldForSaleLongLived
Assets of discontinued operations			2
Sale of Deepwater Floater Discoverer Seven Seas and the Midwater Floater C. Kirk Rhein, Jr. along with related equipment
Dispositions
Net cash proceeds from sale of assets	5
Assets held for sale of Ultra-Deepwater Floater Deepwater Expedition, the Deepwater Floaters, Sedco 707, Sedco 710 Sovereign Explorer and Transocean Rather and the Midwater Floaters, Falcon 100, GSF Aleutian Key, GSF Arctic I, GSF Arctic III, J.W. McLean, Sedco 601, Sedco 700, Sedneth 701 and Transocean Legend, along with related equipment
Dispositions
Aggregate carrying amount of assets held for sale	23
Assets Held For Sale Deepwater Floaters Discoverer Seven Seas, Sedco 710 and Sovereign Explorer and the Midwater Floaters Sedneth 701, C. Kirk Rhein, Jr, Falcon 100, GSF Arctic I, J.W. McLean, Sedco 601 and Sedco 700 with related equipment
Dispositions
Aggregate carrying amount of assets held for sale			23
Sale of other assets
Dispositions
Net cash proceeds from sale of assets	2	8
Loss on disposal of assets, net	(9)	(3)
Sale of the High Specification Jackup GSF Monitor along with related equipment
Dispositions
Net cash proceeds from sale of assets		$ 83