Impairments	6 Months Ended
Jun. 30, 2014
Impairments
Impairments	Note 5—Impairments Assets held for sale—In the six months ended June 30, 2014, we recognized an aggregate loss of $65 million ($0.19 per diluted share), which had no tax effect, associated with the impairment of the Midwater Floater Sedneth 701 and the High-Specification Jackup GSF Magellan, along with related equipment, which were classified as assets held for sale at the time of impairment. We measured the impairments of the drilling units and related equipment as the amount by which the carrying amount exceeded the estimated fair value less costs to sell. We estimated the fair value of the assets using significant other observable inputs, representative of Level 2 fair value measurements, including a binding sale and purchase agreement for the drilling unit and related equipment or indicative market values for the drilling unit and related equipment to be sold for scrap value. In the three and six months ended June 30, 2013, we recognized an aggregate loss of $37 million ($0.10 per diluted share from continuing operations), which had no tax effect, associated with the impairment of the Deepwater Floater Sedco 709 and the Midwater Floaters C. Kirk Rhein, Jr. and Sedco 703, all of which were classified as assets held for sale at the time of impairment. We measured the impairments of the drilling units and related equipment as the amount by which the carrying amounts exceeded the estimated fair values less costs to sell. We estimated the fair values of the assets using significant other observable inputs, representative of Level 2 fair value measurements, including nonbinding sale and purchase agreements for the drilling units and related equipment to be sold for scrap value.

Note 5—Impairments

Assets held for sale—In the six months ended June 30, 2014, we recognized an aggregate loss of $65 million ($0.19 per diluted share), which had no tax effect, associated with the impairment of the Midwater Floater Sedneth 701 and the High-Specification Jackup GSF Magellan, along with related equipment, which were classified as assets held for sale at the time of impairment. We measured the impairments of the drilling units and related equipment as the amount by which the carrying amount exceeded the estimated fair value less costs to sell. We estimated the fair value of the assets using significant other observable inputs, representative of Level 2 fair value measurements, including a binding sale and purchase agreement for the drilling unit and related equipment or indicative market values for the drilling unit and related equipment to be sold for scrap value.

In the three and six months ended June 30, 2013, we recognized an aggregate loss of $37 million ($0.10 per diluted share from continuing operations), which had no tax effect, associated with the impairment of the Deepwater Floater Sedco 709 and the Midwater Floaters C. Kirk Rhein, Jr. and Sedco 703, all of which were classified as assets held for sale at the time of impairment. We measured the impairments of the drilling units and related equipment as the amount by which the carrying amounts exceeded the estimated fair values less costs to sell. We estimated the fair values of the assets using significant other observable inputs, representative of Level 2 fair value measurements, including nonbinding sale and purchase agreements for the drilling units and related equipment to be sold for scrap value.