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Intangible Assets and Goodwill, Goodwill (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |  |
Balance at beginning of period | $ 2,092.3 | $ 2,107.7 |  | $ 2,018.3 | [1]
Goodwill related to acquisitions |  |  |  | 89.4 | [2],[3]
Goodwill adjustment |  | (0.6) | [4] |  |
Goodwill related to the sale of assets |  | (14.8) | [5] |  |
Reclassification to assets held for sale | (5.5) |  |  |  |
Balance at end of period | 2,086.8 | 2,092.3 |  | 2,107.7 |
Accumulated impairment charges | 1.3 |  |  |  |
NGL Pipelines & Services [Member] |  |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |  |
Balance at beginning of period | 341.2 | 341.2 |  | 341.2 |
Goodwill related to acquisitions |  |  |  | 0 |
Goodwill adjustment |  | 0 |  |  |
Goodwill related to the sale of assets |  | 0 |  |  |
Reclassification to assets held for sale | 0 |  |  |  |
Balance at end of period | 341.2 | 341.2 |  | 341.2 |
Onshore Natural Gas Pipelines & Services [Member] |  |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |  |
Balance at beginning of period | 296.3 | 311.1 |  | 284.9 |
Goodwill related to acquisitions |  |  |  | 26.2 |
Goodwill adjustment |  | 0 |  |  |
Goodwill related to the sale of assets |  | (14.8) | [5] |  |
Reclassification to assets held for sale | 0 |  |  |  |
Balance at end of period | 296.3 | 296.3 |  | 311.1 |
Onshore Crude Oil Pipelines & Services [Member] |  |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |  |
Balance at beginning of period | 311.2 | 311.2 |  | 303.0 |
Goodwill related to acquisitions |  |  |  | 8.2 |
Goodwill adjustment |  | 0 |  |  |
Goodwill related to the sale of assets |  | 0 |  |  |
Reclassification to assets held for sale | 0 |  |  |  |
Balance at end of period | 311.2 | 311.2 |  | 311.2 |
Offshore Pipelines & Services [Member] |  |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |  |
Balance at beginning of period | 82.1 | 82.1 |  | 82.1 |
Goodwill related to acquisitions |  |  |  | 0 |
Goodwill adjustment |  | 0 |  |  |
Goodwill related to the sale of assets |  | 0 |  |  |
Reclassification to assets held for sale | 0 |  |  |  |
Balance at end of period | 82.1 | 82.1 |  | 82.1 |
Petrochemical & Refined Products Services [Member] |  |  |  |  |
Changes in carrying amount of goodwill [Roll Forward] |  |  |  |  |
Balance at beginning of period | 1,061.5 | 1,062.1 |  | 1,007.1 |
Goodwill related to acquisitions |  |  |  | 55.0 | [2]
Goodwill adjustment |  | (0.6) | [4] |  |
Goodwill related to the sale of assets |  | 0 |  |  |
Reclassification to assets held for sale | (5.5) |  |  |  |
Balance at end of period | $ 1,056.0 | $ 1,061.5 |  | $ 1,062.1 |
[1] | The total carrying amount of goodwill at January 1, 2010 is net of $1.3 million of accumulated impairment charges incurred prior to 2010. No goodwill impairment charges were recorded during the three years ended December 31, 2012.
[2] | Amount presented for Petrochemical & Refined Products Services includes $5.5 million of goodwill that was part of the drop down of trucking assets from EPCO (see Note 15).
[3] | We attribute these goodwill amounts to our ability to leverage the acquired businesses with our existing asset base to create future business opportunities.
[4] | The goodwill we recorded in connection with a marine business acquisition completed in November 2010 was subsequently reduced in May 2011 due to a purchase price adjustment.
[5] | In December 2011, we disposed of our ownership interests in Crystal (see Note 8), including related goodwill.

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- Definition Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -Clause 1 -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 Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph l -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 34 -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -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 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -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 The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -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 Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -Clause 2 -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 Purchase price allocation adjustment for allocation not yet complete at the prior year end. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -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 142 -Paragraph 45 -Subparagraph e -Clause 7 -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 Amount of other decrease (increase) in the carrying value of goodwill that is not separately disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Definition Write-off of the carrying amount of goodwill associated with all or a portion of a reporting unit that is sold in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -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 Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -Clause 4 -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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