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Acquisition Of Pride International, Inc. (Schedule Of Business Acquisition, Provisional Amounts Recorded For Assets Acquired And Liabilities Assumed) (Details) (USD $) In Millions | Sep. 30, 2011
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Business Acquisition [Line Items] |  |
Gross contractual amounts receivable | $ 394.7 |
Amounts Recognized As Of Merger Date [Member] |  |
Business Acquisition [Line Items] |  |
Cash and cash equivalents | 147.0 |
Accounts receivable | 371.3 | [1]
Other current assets | 150.9 |
Property and equipment | 6,758.8 |
Other assets | 343.7 |
Accounts payable and accrued liabilities and other | 539.8 |
Debt | 2,436.0 |
Deferred income tax liabilities | 19.0 |
Other liabilities | 319.8 |
Net assets acquired | 4,457.1 |
Less merger consideration | 7,415.9 |
Goodwill | 2,958.8 |
Measurement Period Adjustments [Member] |  |
Business Acquisition [Line Items] |  |
Accounts payable and accrued liabilities and other | 2.1 | [2]
Other liabilities | (1.0) | [2]
Net assets acquired | (1.1) | [2]
Goodwill | 1.1 | [2]
Estimated Fair Value [Member] |  |
Business Acquisition [Line Items] |  |
Cash and cash equivalents | 147.0 |
Accounts receivable | 371.3 | [1]
Other current assets | 150.9 |
Property and equipment | 6,758.8 |
Other assets | 343.7 |
Accounts payable and accrued liabilities and other | 541.9 |
Debt | 2,436.0 |
Deferred income tax liabilities | 19.0 |
Other liabilities | 318.8 |
Net assets acquired | 4,456.0 |
Less merger consideration | 7,415.9 |
Goodwill | $ 2,959.9 |
[1] | Gross contractual amounts receivable totaled $394.7 million as of the Merger Date.
[2] | The measurement period adjustments reflect changes in the estimated fair values of certain liabilities, including contingencies and income taxes. The measurement period adjustments were recorded to reflect new information obtained about facts and circumstances existing as of the Merger Date and did not result from intervening events subsequent to the Merger Date. These adjustments did not have a material impact on the Company's previously reported results of operations or financial position subsequent to the Merger Date and, therefore, the Company has not retrospectively adjusted its consolidated financial statements.

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- Definition The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 35 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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