v2.4.0.8

Drilling Fleet (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified | 12 Months Ended |  | 12 Months Ended | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 Assets Held for Sale Deepwater Floater Sedco 709 and Midwater Floaters C. Kirk Rhein Jr., Falcon 100 and Sedco 703 along with related equipment | Dec. 31, 2013 Sale of other assets | Dec. 31, 2012 Sale of other assets | Dec. 31, 2011 Sale of other assets | Sep. 30, 2013 Sale of Transocean Richardson | Dec. 31, 2013 Sale of Transocean Richardson | Dec. 31, 2012 Sale of Deepwater Floaters Discoverer 534 and Jim Cunningham
Dispositions |  |  |  |  |  |  |  |  |  |
Net cash proceeds from sale of assets | $ 174 | $ 191 | $ 14 |  | $ 32 |  |  |  | $ 142 | $ 178
Gain on the sale of assets, net of tax |  |  |  |  |  |  |  |  | 22 | 48
Gain (loss) on the sale of assets | 7 | 36 | (12) |  | (26) | (15) | (12) | 33 | 33 | 51
Gain (loss) on the sale of assets per diluted share |  |  |  |  |  |  |  |  | $ 0.06 | $ 0.13
Aggregate carrying amount of assets held for sale |  |  |  | $ 129 |  |  |  |  |  |

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- Definition Long-lived assets that are held for sale apart from normal operations and anticipated to be sold in less than one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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- Definition 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 -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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