Sale Leaseback (Notes)	12 Months Ended
Dec. 31, 2014
Sale Leaseback [Abstract]
Sale Leaseback Transaction Disclosure [Text Block]	SALE-LEASEBACK In September 2014, we sold jackup rigs ENSCO 83, ENSCO 89, ENSCO 93 and ENSCO 98, all of which were contracted to Pemex. We received proceeds of $211.8 million and incurred commissions and other incremental, direct costs of $5.3 million. The carrying value of these rigs was $169.6 million. In connection with this sale, we executed charter agreements with the purchaser to continue operating the rigs for the remainder of the Pemex contracts, which have anticipated completion dates in either late 2015 or 2016. We accounted for the transaction as a sale-leaseback, whereby we will retain a significant portion of the remaining use of the rigs as a result of the charter agreements. We recorded an aggregate gain on sale of $7.5 million at the time of disposal, which represented the portion of the gain that exceeded the present value of payments due under the charter agreements, and was included in contract drilling expense in our consolidated statement of operations for the year ended December 31, 2014. The remaining $29.4 million gain was deferred and amortized to contract drilling expense within the Jackup segment over the remaining charter term of each rig. Of the $29.4 million deferred gain, $7.0 million was recognized in contract drilling expense in our consolidated statement of operations for the year ended December 31, 2014 and $22.4 million was included in accrued liabilities and other on our consolidated balance sheet as of December 31, 2014. Due to our charter agreements with the purchaser, we expect to have significant continuing involvement and cash flows related to ENSCO 83, ENSCO 89 and ENSCO 98; therefore, the operating results for these rigs were included in income from continuing operations within the Jackup segment for periods prior to the date of sale (September 30, 2014). Operating results for periods beginning after September 30, 2014 were included in income from continuing operations within the Other segment. The proceeds from the sale of these rigs were included in investing activities of continuing operations in our consolidated statement of cash flows for the year ended December 31, 2014. At the time of sale, we expected to also have significant continuing involvement and cash flows related to ENSCO 93; therefore, the operating results for the rig were included in income from continuing operations within the Jackup segment at September 30, 2014. Based on market developments during the fourth quarter, we now expect that the ENSCO 93 charter agreement will terminate prior to September 30, 2015. As a result, the loss on sale of $1.2 million and ENSCO 93 operating results were reclassified to (loss) income from discontinued operations, net in our consolidated statements of operations for the three-year period December 31, 2014. The proceeds from the sale were included in investing activities of discontinued operations in our consolidated statement of cash flows for the year ended December 31, 2014. See "Note 10 - Discontinued Operations" for additional information.

SALE-LEASEBACK

In September 2014, we sold jackup rigs ENSCO 83, ENSCO 89, ENSCO 93 and ENSCO 98, all of which were contracted to Pemex. We received proceeds of $211.8 million and incurred commissions and other incremental, direct costs of $5.3 million. The carrying value of these rigs was $169.6 million.

In connection with this sale, we executed charter agreements with the purchaser to continue operating the rigs for the remainder of the Pemex contracts, which have anticipated completion dates in either late 2015 or 2016. We accounted for the transaction as a sale-leaseback, whereby we will retain a significant portion of the remaining use of the rigs as a result of the charter agreements.

We recorded an aggregate gain on sale of $7.5 million at the time of disposal, which represented the portion of the gain that exceeded the present value of payments due under the charter agreements, and was included in contract drilling expense in our consolidated statement of operations for the year ended December 31, 2014. The remaining $29.4 million gain was deferred and amortized to contract drilling expense within the Jackup segment over the remaining charter term of each rig. Of the $29.4 million deferred gain, $7.0 million was recognized in contract drilling expense in our consolidated statement of operations for the year ended December 31, 2014 and $22.4 million was included in accrued liabilities and other on our consolidated balance sheet as of December 31, 2014.

Due to our charter agreements with the purchaser, we expect to have significant continuing involvement and cash flows related to ENSCO 83, ENSCO 89 and ENSCO 98; therefore, the operating results for these rigs were included in income from continuing operations within the Jackup segment for periods prior to the date of sale (September 30, 2014). Operating results for periods beginning after September 30, 2014 were included in income from continuing operations within the Other segment. The proceeds from the sale of these rigs were included in investing activities of continuing operations in our consolidated statement of cash flows for the year ended December 31, 2014.

At the time of sale, we expected to also have significant continuing involvement and cash flows related to ENSCO 93; therefore, the operating results for the rig were included in income from continuing operations within the Jackup segment at September 30, 2014. Based on market developments during the fourth quarter, we now expect that the ENSCO 93 charter agreement will terminate prior to September 30, 2015. As a result, the loss on sale of $1.2 million and ENSCO 93 operating results were reclassified to (loss) income from discontinued operations, net in our consolidated statements of operations for the three-year period December 31, 2014. The proceeds from the sale were included in investing activities of discontinued operations in our consolidated statement of cash flows for the year ended December 31, 2014. See "Note 10 - Discontinued Operations" for additional information.