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Derivative Instruments (Schedule Of Estimated Amount Of Net Gains Associated With Derivatives) (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Net unrealized gains to be reclassified to contract drilling expense | $ (5.2)
Net realized gains to be reclassified to depreciation expense | 0.8
Net realized (losses) to be reclassified to interest expense | (0.2)
Net gains to be reclassified to earnings | $ (4.6)

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- Definition Net Gains (Losses) To Be Reclassified To Earnings + References No definition available. + Details
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- Definition Net Realized Gains To Be Reclassified To Depreciation Expense + References No definition available. + Details
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Namespace Prefix: | esv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Net Realized Losses To Be Reclassified To Interest Expense + References No definition available. + Details
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Namespace Prefix: | esv_
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- Definition Net Unrealized Gains (Losses) To Be Reclassified To Contract Drilling Expense + References No definition available. + Details
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- References No definition available. + Details
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