v2.4.0.8

Drilling Fleet (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended | 1 Months Ended | 6 Months Ended |
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Jun. 30, 2014 drillingunit item | Jun. 30, 2013 | Jun. 30, 2014 drillingunit item | Jun. 30, 2013 | Oct. 31, 2011 Aker Drilling | Jun. 30, 2013 Transocean Siam Driller | Jun. 30, 2013 Transocean Andaman | Jun. 30, 2013 Transocean Ao Thai | Jun. 30, 2014 Deepwater Asgard | Jun. 30, 2013 Deepwater Asgard | Jun. 30, 2014 Deepwater Invictus | Jun. 30, 2013 Deepwater Invictus | Jun. 30, 2014 Deepwater Thalassa | Jun. 30, 2013 Deepwater Thalassa | Jun. 30, 2014 Deepwater Proteus | Jun. 30, 2013 Deepwater Proteus | Jun. 30, 2014 Deepwater Conqueror | Jun. 30, 2014 Deepwater Pontus | Jun. 30, 2013 Deepwater Pontus | Jun. 30, 2014 Deepwater Poseidon | Jun. 30, 2013 Deepwater Poseidon | Jun. 30, 2014 High-Specification Jackup TBN1 | Jun. 30, 2014 High-Specification Jackup TBN2 | Jun. 30, 2014 High-Specification Jackup TBN3 | Jun. 30, 2014 High-Specification Jackup TBN4 | Jun. 30, 2014 Ultra-Deepwater drillship TBN1 | Jun. 30, 2014 High Specification Jackup TBN5 | Jun. 30, 2014 Ultra-Deepwater drillship TBN2 | Jun. 30, 2014 Other construction projects and capital additions | Jun. 30, 2013 Other construction projects and capital additions | Jun. 30, 2014 Other property and equipment | Jun. 30, 2013 Other property and equipment | Jun. 30, 2014 Deepwater Asgard and Deepwater Invictus drillingunit | Jun. 30, 2014 Deepwater Thalassa, Deepwater Proteus, Deepwater Pontus and Deepwater Poseidon drillingunit
Changes in construction work in progress, including capital expenditures and other capital additions, such as capitalized interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction work in progress, at beginning of period |  |  | $ 2,710 | $ 2,010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures | 351 | 352 | 1,482 | 840 |  | 74 | 82 | 13 | 272 | 24 | 477 | 25 | 58 | 84 | 21 | 82 | 109 | 83 | 4 | 80 | 3 | 3 | 2 | 2 | 2 | 28 | 2 | 27 | 316 | 449 |  |  |  |
Changes in accrued capital expenditures |  |  | (76) | (29) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property and equipment placed into service |  |  |  |  |  | (236) | (242) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (350) | (506) |  |
Construction work in progress, at end of period | 3,766 | 1,837 | 3,766 | 1,837 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Ultra-Deepwater Floaters under construction | 2 |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 4
Acquisition of construction work in progress |  |  |  |  | $ 272 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of High Specification Jackups under construction | 5 |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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