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Guarantee Of Registered Securities (Condensed Consolidating Statements Of Cash Flows) (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | $ 994.8 | $ 1,274.6
INVESTING ACTIVITIES |  |
Additions to property and equipment | (255.5) | (1,445.8)
Purchase of Affiliate Debt | 0.0 |
Maturities of short-term investments | 1,582.0 | 757.3
Purchases of short-term investments | (1,704.0) | (850.0)
Other | 7.7 | 1.4
Net cash used in investing activities of continuing operations | (369.8) | (1,537.1)
FINANCING ACTIVITIES |  |
Proceeds from equity issuance | 585.5 | 0.0
Proceeds from Issuance of Senior Long-term Debt | 0.0 | 1,078.7
Cash dividends paid | (8.5) | (105.9)
Payments for Advance to Affiliate | 0.0 |
Reduction of long-term borrowings | (862.4) | (1,072.5)
Debt financing costs | 0.0 | (10.5)
Advances from (to) affiliates |  | 0.0
Premium paid on redemption of debt | 0.0 | (30.3)
Other | (2.3) | (8.4)
Net cash used in financing activities | (287.7) | (148.9)
DISCONTINUED OPERATIONS |  |
Operating activities | 1.2 | (12.7)
Investing activities | 6.2 | (0.3)
Net cash provided by (used in) discontinued operations | 7.4 | (13.0)
Effect of exchange rate changes on cash and cash equivalents | (0.6) | 0.0
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 344.1 | (424.4)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 121.3 | 664.8
CASH AND CASH EQUIVALENTS, END OF PERIOD | 465.4 | 240.4
Ensco Plc [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | 150.4 | (34.2)
INVESTING ACTIVITIES |  |
Additions to property and equipment | 0.0 |
Purchase of Affiliate Debt | (237.9) |
Maturities of short-term investments | 1,582.0 | 712.0
Purchases of short-term investments | (1,282.0) | (850.0)
Net cash used in investing activities of continuing operations | 62.1 | (138.0)
FINANCING ACTIVITIES |  |
Proceeds from equity issuance | 585.5 |
Proceeds from Issuance of Senior Long-term Debt |  | 1,078.7
Cash dividends paid | (8.5) | (105.9)
Reduction of long-term borrowings | (862.4) | (1,072.5)
Debt financing costs |  | (10.5)
Advances from (to) affiliates | (156.1) | (175.0)
Premium paid on redemption of debt |  | (30.3)
Other | (2.0) | (5.2)
Net cash used in financing activities | (131.3) | 29.3
DISCONTINUED OPERATIONS |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 81.2 | (142.9)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 94.0 | 287.4
CASH AND CASH EQUIVALENTS, END OF PERIOD | 175.2 | 144.5
ENSCO International Inc. [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | (23.6) | (7.1)
INVESTING ACTIVITIES |  |
Additions to property and equipment | 0.0 | 0.0
Purchases of short-term investments |  | 0.0
Other | 0.0 | 0.0
Net cash used in investing activities of continuing operations | 0.0 | 0.0
FINANCING ACTIVITIES |  |
Proceeds from equity issuance | 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
Debt financing costs |  | 0.0
Advances from (to) affiliates | (23.6) | (7.2)
Premium paid on redemption of debt |  | 0.0
Other | 0.0 | 0.0
Net cash used in financing activities | 23.6 | 7.2
DISCONTINUED OPERATIONS |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 0.0 | 0.1
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 0.0 | 0.0
CASH AND CASH EQUIVALENTS, END OF PERIOD | 0.0 | 0.1
Pride International, Inc. [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | (95.3) | (86.1)
INVESTING ACTIVITIES |  |
Purchase of Affiliate Debt | 0.0 |
Purchases of short-term investments |  | 0.0
Net cash used in investing activities of continuing operations | 0.0 | 0.0
FINANCING ACTIVITIES |  |
Proceeds from equity issuance | 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
Debt financing costs |  | 0.0
Advances from (to) affiliates | (114.1) | (9.9)
Premium paid on redemption of debt |  | 0.0
Other | 0.0 | 0.0
Net cash used in financing activities | 114.1 | 9.9
DISCONTINUED OPERATIONS |  |
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 18.8 | (76.2)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 2.0 | 90.8
CASH AND CASH EQUIVALENTS, END OF PERIOD | 20.8 | 14.6
Other Non-Guarantor Subsidiaries Of Ensco [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | 963.3 | 1,402.0
INVESTING ACTIVITIES |  |
Additions to property and equipment | (255.5) | (1,445.8)
Purchase of Affiliate Debt | 0.0 |
Maturities of short-term investments | 0.0 | 45.3
Purchases of short-term investments | (422.0) | 0.0
Other | 7.7 | 1.4
Net cash used in investing activities of continuing operations | (669.8) | (1,399.1)
FINANCING ACTIVITIES |  |
Proceeds from equity issuance | 0.0 |
Proceeds from Issuance of Senior Long-term Debt |  | 0.0
Cash dividends paid | 0.0 | 0.0
Payments for Advance to Affiliate | (293.8) | (192.1)
Reduction of long-term borrowings |  | 0.0
Proceeds from (Repayments of) Debt | 237.9 |
Debt financing costs |  | 0.0
Premium paid on redemption of debt |  | 0.0
Other | (0.3) | (3.2)
Net cash used in financing activities | (56.2) | (195.3)
DISCONTINUED OPERATIONS |  |
Operating activities | 1.2 | (12.7)
Investing activities | 6.2 | (0.3)
Net cash provided by (used in) discontinued operations | 7.4 | (13.0)
Effect of exchange rate changes on cash and cash equivalents | (0.6) | 0.0
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 244.1 | (205.4)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 25.3 | 286.6
CASH AND CASH EQUIVALENTS, END OF PERIOD | 269.4 | 81.2
Consolidating Adjustments [Member] |  |
OPERATING ACTIVITIES |  |
Net cash (used in) provided by operating activities of continuing operations | 0.0 |
INVESTING ACTIVITIES |  |
Purchase of Affiliate Debt | 237.9 |
Net cash used in investing activities of continuing operations | 237.9 | 0.0
FINANCING ACTIVITIES |  |
Proceeds from equity issuance | 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 | (237.9) | 0.0
Debt financing costs |  | 0.0
Advances from (to) affiliates |  | 0.0
Premium paid on redemption of debt |  | 0.0
Other | 0.0 | 0.0
Net cash used in financing activities | $ (237.9) | $ 0.0

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- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 + Details
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- Definition The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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