XML 85 R70.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Discontinued Operations (Narrative) (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 USD ($) rigs | Jun. 30, 2015 USD ($) | Sep. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) rigs | Mar. 31, 2014 USD ($) | Mar. 31, 2013 USD ($) | Dec. 31, 2015 USD ($) rigs | Dec. 31, 2014 USD ($) rigs | Dec. 31, 2013 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Discontinued Operations, Income Tax Expense (Benefit), Discrete Item |  |  |  |  |  |  |  | $ 12.6 |  |
Number of Rigs Committed to be Sold | rigs |  | 6 |  |  | 5 |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of, Net of Tax Benefit |  |  |  |  |  |  |  | 120.6 | $ 1,158.8 | $ 0.0
Pre-tax Gain/(Loss) | [1],[2] |  |  |  |  |  |  | 34.8 |  |
Net Cash Provided by (Used in) Discontinued Operations |  |  |  |  |  |  |  | $ (8.7) | $ 103.4 | $ 202.1
Jackups [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Rigs Committed to be Sold | rigs |  |  |  |  |  |  |  | 2 | 2 |
Jackups [Member] | ENSCO 69 And Wisconsin [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Pre-tax Gain/(Loss) |  |  |  |  |  | $ 23.6 |  |  |  |
Net Cash Provided by (Used in) Discontinued Operations | [2] |  |  |  |  | $ 32.2 |  |  |  |
Jackups [Member] | ENSCO 93 [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Pre-tax Gain/(Loss) |  |  |  | $ (1.2) |  |  |  |  | $ 1.2 |
Net Cash Provided by (Used in) Discontinued Operations | [2] |  |  | $ 51.7 |  |  |  |  | $ 51.7 |
Jackups [Member] | ENSCO 85 [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Pre-tax Gain/(Loss) |  |  |  |  | $ 10.3 |  |  |  |  |
Net Cash Provided by (Used in) Discontinued Operations | [2] |  |  |  | $ 64.4 |  |  |  |  |
Jackups [Member] | Pride Pennsylvania Rig [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Pre-tax Gain/(Loss) |  |  |  |  |  |  | $ (0.2) |  |  |
Net Cash Provided by (Used in) Discontinued Operations | [2] |  |  |  |  |  | $ 15.5 |  |  |
Floaters [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Rigs Committed to be Sold | rigs |  |  |  |  |  |  |  | 3 | 6 |
Floaters [Member] | ENSCO 5002 [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Pre-tax Gain/(Loss) |  |  | $ 1.6 |  |  |  |  |  |  |
Net Cash Provided by (Used in) Discontinued Operations | [2] | $ 1.6 | $ 1.6 |  |  |  |  |  |  |
Floaters [Member] | ENSCO 5001 [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Pre-tax Gain/(Loss) |  | (0.1) |  |  |  |  |  |  |  |
Net Cash Provided by (Used in) Discontinued Operations | [2] | $ 2.4 |  |  |  |  |  |  |  |
Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of, Tax Benefit |  |  |  |  |  |  |  | $ 28.0 | $ 83.5 |
[1] | In September 2014, we sold jackup rigs ENSCO 83, ENSCO 89, ENSCO 93 and ENSCO 98, all of which are contracted to Pemex. As described below, the loss on sale and operating results of ENSCO 93 were included in loss from discontinued operations, net, in our consolidated statement of operations for the three-year period ended December 31, 2015.
[2] | The rigs' operating results were reclassified to discontinued operations in our consolidated statements of operations for each of the years in the three-year period ended December 31, 2015 and were previously included within the operating segment noted in the above table.

X
- Definition Discontinued Operations, Income Tax Expense (Benefit), Discrete Item + References No definition available. + Details
Name: | esv_DiscontinuedOperationsIncomeTaxExpenseBenefitDiscreteItem
Namespace Prefix: | esv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment of Long-Lived Assets to be Disposed of, Net of Tax Benefit + References No definition available. + Details
Name: | esv_ImpairmentofLongLivedAssetstobeDisposedofNetofTaxBenefit
Namespace Prefix: | esv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment of Long-Lived Assets to be Disposed of, Tax Benefit + References No definition available. + Details
Name: | esv_ImpairmentofLongLivedAssetstobeDisposedofTaxBenefit
Namespace Prefix: | esv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of Rigs Committed to be Sold + References No definition available. + Details
Name: | esv_NumberofRigsCommittedtobeSold
Namespace Prefix: | esv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721525-107759 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=51717284&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51716988&loc=d3e957-107759 + Details
Name: | us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase (decrease) in cash associated with the entity's discontinued operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585 + Details
Name: | us-gaap_NetCashProvidedByUsedInDiscontinuedOperations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=esv_JackupsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=esv_ENSCO69AndWisconsinMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=esv_Ensco93Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=esv_ENSCO85Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=esv_PridePennsylvaniaRigMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=esv_FloatersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=esv_ENSCO5002MemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=esv_ENSCO5001Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SegmentDiscontinuedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |