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Acquisitions (Details) (USD $) | 3 Months Ended | 9 Months Ended | 0 Months Ended |  | 0 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | Oct. 02, 2011 Meraux Acquisition [Member] | Dec. 31, 2011 Meraux Acquisition [Member] | Aug. 01, 2011 Pembroke Acquisition [Member] | Sep. 30, 2012 Pembroke Acquisition [Member] | Dec. 31, 2011 Pembroke Acquisition [Member]
Purchase Price Allocation |  |  |  |  |  |  |  |  |
Current assets, net of cash acquired |  |  |  |  |  |  |  | $ 2,215,000,000 |
Property, plant and equipment |  |  |  |  |  |  |  | 947,000,000 |
Intangible assets |  |  |  |  |  |  |  | 22,000,000 |
Deferred charges and other assets, net |  |  |  |  |  |  |  | 37,000,000 |
Current liabilities, less current portion of debt and capital lease obligations |  |  |  |  |  |  |  | (1,294,000,000) |
Debt and capital leases assumed, including current portion |  |  |  |  |  |  |  | (12,000,000) |
Deferred income taxes |  |  |  |  |  |  |  | (159,000,000) |
Other long-term liabilities |  |  |  |  |  |  |  | (60,000,000) |
Noncontrolling interest |  |  |  |  |  |  |  | (5,000,000) |
Purchase price, net of cash acquired |  |  |  |  |  |  |  | 1,691,000,000 |
Acquisitions (Textual) |  |  |  |  |  |  |  |  |
Effective date of acquisition |  |  |  |  | Oct. 01, 2011 |  | Aug. 01, 2011 |  |
Purchase price of acquired entity |  |  |  |  | 586,000,000 | 547,000,000 | 1,800,000,000 |  | 1,700,000,000
Percentage of outstanding shares acquired |  |  |  |  |  |  | 100.00% |  |
Purchase price of working capital |  |  |  |  |  |  | 1,100,000,000 |  |
Purchase price allocation adjustment increase to property, plant, and equipment |  |  |  |  |  |  |  | 143,000,000 |
Purchase price allocation adjustment increase to deferred tax liabilities |  |  |  |  |  |  |  | 124,000,000 |
Purchase price alloation adjustment increase to other long-term liabilities |  |  |  |  |  |  |  | 17,000,000 |
Depreciation expense true-up | $ 402,000,000 | $ 390,000,000 | $ 1,172,000,000 | $ 1,141,000,000 |  |  |  | $ 6,000,000 |

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- Definition The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of 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. + Details
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- Definition Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e845-128460 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Acquisition Date -URI http://asc.fasb.org/extlink&oid=6919109 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e848-128460 + Details
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- Definition Percentage of voting equity interests acquired in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph c -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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- Definition The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph e -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 52 -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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- Definition The amount of acquisition cost of a business combination allocated to current assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph e -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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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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