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Guarantee Of Registered Securities (Condensed Consolidating Statements Of Cash Flows) (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2016 | Jun. 30, 2015
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | $ 800.2 | $ 891.0
INVESTING ACTIVITIES |  |
Additions to property and equipment | (209.4) | (913.9)
Purchase of Affiliate Debt | 0.0 |
Maturities of short-term investments | 1,032.0 | 757.3
Payments to Acquire Marketable Securities | (862.0) | (650.0)
Other | 7.6 | 1.1
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | (31.8) | (805.5)
FINANCING ACTIVITIES |  |
Proceeds from Issuance or Sale of Equity | 585.5 | 0.0
Proceeds from Issuance of Senior Long-term Debt | 0.0 | 1,078.7
Cash dividends paid | (5.5) | (70.5)
Payments for Advance to Affiliate | 0.0 |
Reduction of long-term borrowings | (684.8) | (1,058.0)
Payments of Debt Issuance Costs | 0.0 | (10.5)
Advances from (to) affiliates |  | 0.0
Payments of Debt Extinguishment Costs | 0.0 | (30.3)
Other | (1.9) | (6.8)
Net cash provided by (used in) financing activities | (106.7) | (97.4)
DISCONTINUED OPERATIONS |  |
Operating activities | 1.4 | (4.2)
Investing activities | 6.3 | (0.6)
Net cash provided by discontinued operations | 7.7 | (4.8)
Effect of exchange rate changes on cash and cash equivalents | (0.4) | 0.2
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 669.0 | (16.5)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 121.3 | 664.8
CASH AND CASH EQUIVALENTS, END OF PERIOD | 790.3 | 648.3
Ensco Plc [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | (83.4) | (66.2)
INVESTING ACTIVITIES |  |
Additions to property and equipment | 0.0 |
Purchase of Affiliate Debt | (142.0) |
Maturities of short-term investments | 1,032.0 | 712.0
Payments to Acquire Marketable Securities | (862.0) | (650.0)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | 28.0 | 62.0
FINANCING ACTIVITIES |  |
Proceeds from Issuance or Sale of Equity | 585.5 |
Proceeds from Issuance of Senior Long-term Debt |  | 1,078.7
Cash dividends paid | (5.5) | (70.5)
Reduction of long-term borrowings | (542.8) | (998.3)
Payments of Debt Issuance Costs |  | (10.5)
Advances from (to) affiliates | (638.9) | (88.2)
Payments of Debt Extinguishment Costs |  | (27.2)
Other | (1.9) | (9.0)
Net cash provided by (used in) financing activities | 674.2 | 51.4
DISCONTINUED OPERATIONS |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 618.8 | 47.2
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 94.0 | 287.4
CASH AND CASH EQUIVALENTS, END OF PERIOD | 712.8 | 334.6
ENSCO International Inc. [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | 130.8 | (19.7)
INVESTING ACTIVITIES |  |
Additions to property and equipment | 0.0 | (5.1)
Payments to Acquire Marketable Securities |  | 0.0
Other | 0.0 | 0.0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | 0.0 | (5.1)
FINANCING ACTIVITIES |  |
Proceeds from Issuance or Sale of Equity | 0.0 |
Proceeds from Issuance of Senior Long-term Debt |  | 0.0
Cash dividends paid | 0.0 | 0.0
Payments for Advance to Affiliate | (130.8) |
Reduction of long-term borrowings | 0.0 | 0.0
Payments of Debt Issuance Costs |  | 0.0
Advances from (to) affiliates |  | (24.8)
Payments of Debt Extinguishment Costs |  | 0.0
Other | 0.0 | 0.0
Net cash provided by (used in) financing activities | (130.8) | 24.8
DISCONTINUED OPERATIONS |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 0.0 | 0.0
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 0.0 | 0.0
CASH AND CASH EQUIVALENTS, END OF PERIOD | 0.0 | 0.0
Pride International, Inc. [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | (60.4) | (49.9)
INVESTING ACTIVITIES |  |
Purchase of Affiliate Debt | 0.0 |
Payments to Acquire Marketable Securities |  | 0.0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | 0.0 | 0.0
FINANCING ACTIVITIES |  |
Proceeds from Issuance or Sale of Equity | 0.0 |
Proceeds from Issuance of Senior Long-term Debt |  | 0.0
Cash dividends paid | 0.0 | 0.0
Reduction of long-term borrowings | 0.0 | 0.0
Payments of Debt Issuance Costs |  | 0.0
Advances from (to) affiliates | (84.5) | (63.5)
Payments of Debt Extinguishment Costs |  | 0.0
Other | 0.0 | 0.0
Net cash provided by (used in) financing activities | 84.5 | 63.5
DISCONTINUED OPERATIONS |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 24.1 | 13.6
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 2.0 | 90.8
CASH AND CASH EQUIVALENTS, END OF PERIOD | 26.1 | 104.4
Other Non-Guarantor Subsidiaries Of Ensco [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | 813.2 | 1,026.8
INVESTING ACTIVITIES |  |
Additions to property and equipment | (209.4) | (908.8)
Purchase of Affiliate Debt | 0.0 |
Maturities of short-term investments | 0.0 | 45.3
Payments to Acquire Marketable Securities | 0.0 | 0.0
Other | 7.6 | 1.1
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | (201.8) | (862.4)
FINANCING ACTIVITIES |  |
Proceeds from Issuance or Sale of Equity | 0.0 |
Proceeds from Issuance of Senior Long-term Debt |  | 0.0
Cash dividends paid | 0.0 | 0.0
Payments for Advance to Affiliate | (592.6) | (176.5)
Reduction of long-term borrowings | 0.0 | (59.7)
Payments of Debt Issuance Costs |  | 0.0
Payments of Debt Extinguishment Costs |  | (3.1)
Other | 0.0 | 2.2
Net cash provided by (used in) financing activities | (592.6) | (237.1)
DISCONTINUED OPERATIONS |  |
Operating activities | 1.4 | (4.2)
Investing activities | 6.3 | (0.6)
Net cash provided by discontinued operations | 7.7 | (4.8)
Effect of exchange rate changes on cash and cash equivalents | (0.4) | 0.2
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 26.1 | (77.3)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 25.3 | 286.6
CASH AND CASH EQUIVALENTS, END OF PERIOD | 51.4 | 209.3
Consolidating Adjustments [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | 0.0 |
INVESTING ACTIVITIES |  |
Purchase of Affiliate Debt | 142.0 |
Net Cash Provided by (Used in) Investing Activities, Continuing Operations | 142.0 | 0.0
FINANCING ACTIVITIES |  |
Proceeds from Issuance or Sale of Equity | 0.0 |
Proceeds from Issuance of Senior Long-term Debt |  | 0.0
Cash dividends paid | 0.0 | 0.0
Payments for Advance to Affiliate | 0.0 |
Reduction of long-term borrowings | (142.0) | 0.0
Payments of Debt Issuance Costs |  | 0.0
Advances from (to) affiliates |  | 0.0
Payments of Debt Extinguishment Costs |  | 0.0
Other | 0.0 | 0.0
Net cash provided by (used in) financing activities | $ (142.0) | $ 0.0

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