v2.4.0.8
Guarantee Of Registered Securities (Condensed Consolidating Balance Sheets) (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Dec. 31, 2012
Guarantor Obligations [Line Items]        
Cash and cash equivalents $ 145.0 $ 165.6 $ 489.8 $ 487.1
Accounts receivable, net 843.6 855.7    
Other 787.2 513.9    
Total current assets 1,775.8 1,535.2    
PROPERTY AND EQUIPMENT, AT COST 15,801.2 17,498.5    
Less accumulated depreciation 2,920.0 3,187.5    
Property and equipment, net 12,881.2 14,311.0 13,390.5  
GOODWILL 3,274.0 3,274.0    
OTHER ASSETS, NET 340.2 352.7    
TOTAL ASSETS 18,271.2 19,472.9    
Accounts payable and accrued liabilities 1,042.5 999.8    
Current maturities of long-term debt 47.5 47.5    
Total current liabilities 1,090.0 1,047.3    
LONG-TERM DEBT 4,679.1 4,718.9    
DEFERRED INCOME TAXES 317.0 362.1    
OTHER LIABILITIES 592.3 545.7    
ENSCO SHAREHOLDERS' EQUITY 11,582.6 12,791.6    
NONCONTROLLING INTERESTS 10.2 7.3    
Total equity 11,592.8 12,798.9    
Total liabilities and shareholders' equity 18,271.2 19,472.9    
Ensco Plc [Member]
        
Guarantor Obligations [Line Items]        
Cash and cash equivalents 37.1 46.5 291.4 271.8
Accounts receivable from affiliates 2,036.8 1,235.0    
Other 3.0 3.2    
Total current assets 2,076.9 1,284.7    
PROPERTY AND EQUIPMENT, AT COST 2.1 2.1    
Less accumulated depreciation 1.6 1.5    
Property and equipment, net 0.5 0.6    
DUE FROM AFFILIATES 1,314.6 4,876.8    
INVESTMENTS IN AFFILIATES 12,644.7 13,830.1    
OTHER ASSETS, NET 7.5 8.8    
TOTAL ASSETS 16,044.2 20,001.0    
Accounts payable and accrued liabilities 38.9 31.5    
Accounts payable to affiliates 534.5 3,666.1    
Total current liabilities 573.4 3,697.6    
DUE TO AFFILIATES 1,402.2 1,030.8    
LONG-TERM DEBT 2,475.8 2,473.7    
OTHER LIABILITIES 0 0    
ENSCO SHAREHOLDERS' EQUITY 11,592.8 12,798.9    
Total equity 11,592.8 12,798.9    
Total liabilities and shareholders' equity 16,044.2 20,001.0    
ENSCO International Inc. [Member]
        
Guarantor Obligations [Line Items]        
Cash and cash equivalents 0 0.5 0.7 1.7
Accounts receivable, net 0 0    
Accounts receivable from affiliates 180.0 213.8    
Other 15.0 61.3    
Total current assets 195.0 275.6    
PROPERTY AND EQUIPMENT, AT COST 49.5 34.3    
Less accumulated depreciation 29.7 26.5    
Property and equipment, net 19.8 7.8    
DUE FROM AFFILIATES 4,681.0 4,236.0    
INVESTMENTS IN AFFILIATES 3,492.7 4,868.6    
OTHER ASSETS, NET 50.6 60.1    
TOTAL ASSETS 8,439.1 9,448.1    
Accounts payable and accrued liabilities 15.1 9.1    
Accounts payable to affiliates 530.0 549.7    
Total current liabilities 545.1 558.8    
DUE TO AFFILIATES 3,207.0 2,760.4    
LONG-TERM DEBT 149.1 149.1    
DEFERRED INCOME TAXES 307.3 358.3    
OTHER LIABILITIES 2.1 2.3    
ENSCO SHAREHOLDERS' EQUITY 4,228.5 5,619.2    
Total equity 4,228.5 5,619.2    
Total liabilities and shareholders' equity 8,439.1 9,448.1    
Pride International, Inc. [Member]
        
Guarantor Obligations [Line Items]        
Cash and cash equivalents 5.3 4.9 46.0 85.0
Accounts receivable, net 0 0    
Accounts receivable from affiliates 2.6 5.5    
Other 0      
Total current assets 7.9 10.4    
DUE FROM AFFILIATES 1,948.9 1,898.0    
INVESTMENTS IN AFFILIATES 2,652.7 4,092.2    
TOTAL ASSETS 4,609.5 6,000.6    
Accounts payable and accrued liabilities 34.2 34.2    
Accounts payable to affiliates 0 0    
Total current liabilities 34.2 34.2    
DUE TO AFFILIATES 1,552.6 1,331.1    
LONG-TERM DEBT 1,990.7 2,007.8    
OTHER LIABILITIES 8.1 8.7    
ENSCO SHAREHOLDERS' EQUITY 1,023.9 2,618.8    
Total equity 1,023.9 2,618.8    
Total liabilities and shareholders' equity 4,609.5 6,000.6    
Other Non-Guarantor Subsidiaries Of Ensco [Member]
        
Guarantor Obligations [Line Items]        
Cash and cash equivalents 102.6 113.7 151.7 128.6
Accounts receivable, net 843.6 855.7    
Accounts receivable from affiliates 1,041.9 4,169.2    
Other 769.2 449.4    
Total current assets 2,757.3 5,588.0    
PROPERTY AND EQUIPMENT, AT COST 15,749.6 17,462.1    
Less accumulated depreciation 2,888.7 3,159.5    
Property and equipment, net 12,860.9 14,302.6    
GOODWILL 3,274.0 3,274.0    
DUE FROM AFFILIATES 6,111.0 5,069.7    
OTHER ASSETS, NET 282.1 283.8    
TOTAL ASSETS 25,285.3 28,518.1    
Accounts payable and accrued liabilities 954.3 925.0    
Accounts payable to affiliates 2,196.8 1,407.7    
Current maturities of long-term debt 47.5 47.5    
Total current liabilities 3,198.6 2,380.2    
DUE TO AFFILIATES 7,893.7 10,958.2    
LONG-TERM DEBT 63.5 88.3    
DEFERRED INCOME TAXES 9.7 3.8    
OTHER LIABILITIES 582.1 534.7    
ENSCO SHAREHOLDERS' EQUITY 13,527.5 14,545.6    
NONCONTROLLING INTERESTS 10.2 7.3    
Total equity 13,537.7 14,552.9    
Total liabilities and shareholders' equity 25,285.3 28,518.1    
Consolidating Adjustments [Member]
        
Guarantor Obligations [Line Items]        
Accounts receivable from affiliates (3,261.3) (5,623.5)    
Total current assets (3,261.3) (5,623.5)    
DUE FROM AFFILIATES (14,055.5) (16,080.5)    
INVESTMENTS IN AFFILIATES (18,790.1) (22,790.9)    
TOTAL ASSETS (36,106.9) (44,494.9)    
Accounts payable to affiliates (3,261.3) (5,623.5)    
Total current liabilities (3,261.3) (5,623.5)    
DUE TO AFFILIATES (14,055.5) (16,080.5)    
ENSCO SHAREHOLDERS' EQUITY (18,790.1) (22,790.9)    
Total equity (18,790.1) (22,790.9)    
Total liabilities and shareholders' equity $ (36,106.9) $ (44,494.9)