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Intangible Assets and Goodwill, Intangible Assets (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012
Identifiable intangible assets [Abstract] |  |  |
Gross Value | $ 2,615.5 |  | $ 2,616.8
Accumulated Amortization | (1,075.7) |  | (1,050.0)
Carrying Value | 1,539.8 |  | 1,566.8
Amortization Expense | 26.9 | 32.3 |
Forecasted amortization expense [Abstract] |  |  |
Remainder of 2013 | 79.3 |  |
2014 | 96.1 |  |
2015 | 90.1 |  |
2016 | 91.8 |  |
2017 | 95.8 |  |
NGL Pipelines & Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 625.4 |  | 625.4
Accumulated Amortization | (314.4) |  | (304.8)
Carrying Value | 311.0 |  | 320.6
Amortization Expense | 9.6 | 10.2 |
NGL Pipelines & Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 340.8 |  | 340.8
Accumulated Amortization | (152.3) |  | (147.6)
Carrying Value | 188.5 |  | 193.2
NGL Pipelines & Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 284.6 |  | 284.6
Accumulated Amortization | (162.1) |  | (157.2)
Carrying Value | 122.5 |  | 127.4
Onshore Natural Gas Pipelines & Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 1,629.7 |  | 1,629.7
Accumulated Amortization | (574.2) |  | (561.8)
Carrying Value | 1,055.5 |  | 1,067.9
Amortization Expense | 12.4 | 15.8 |
Onshore Natural Gas Pipelines & Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 1,163.6 |  | 1,163.6
Accumulated Amortization | (257.8) |  | (250.0)
Carrying Value | 905.8 |  | 913.6
Onshore Natural Gas Pipelines & Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 466.1 |  | 466.1
Accumulated Amortization | (316.4) |  | (311.8)
Carrying Value | 149.7 |  | 154.3
Onshore Crude Oil Pipelines & Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 11.1 |  | 11.1
Accumulated Amortization | (5.5) |  | (5.2)
Carrying Value | 5.6 |  | 5.9
Amortization Expense | 0.3 | 0.2 |
Onshore Crude Oil Pipelines & Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 10.7 |  | 10.7
Accumulated Amortization | (5.2) |  | (4.9)
Carrying Value | 5.5 |  | 5.8
Onshore Crude Oil Pipelines & Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 0.4 |  | 0.4
Accumulated Amortization | (0.3) |  | (0.3)
Carrying Value | 0.1 |  | 0.1
Offshore Pipelines & Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 205.1 |  | 205.1
Accumulated Amortization | (142.0) |  | (138.9)
Carrying Value | 63.1 |  | 66.2
Amortization Expense | 3.0 | 2.6 |
Offshore Pipelines & Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 203.9 |  | 203.9
Accumulated Amortization | (141.6) |  | (138.5)
Carrying Value | 62.3 |  | 65.4
Offshore Pipelines & Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 1.2 |  | 1.2
Accumulated Amortization | (0.4) |  | (0.4)
Carrying Value | 0.8 |  | 0.8
Petrochemical & Refined Products Services [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 144.2 |  | 145.5
Accumulated Amortization | (39.6) |  | (39.3)
Carrying Value | 104.6 |  | 106.2
Amortization Expense | 1.6 | 3.5 |
Petrochemical & Refined Products Services [Member] | Customer relationship intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 104.3 |  | 104.3
Accumulated Amortization | (34.7) |  | (33.4)
Carrying Value | 69.6 |  | 70.9
Petrochemical & Refined Products Services [Member] | Contract-based intangibles [Member] |  |  |
Identifiable intangible assets [Abstract] |  |  |
Gross Value | 39.9 |  | 41.2
Accumulated Amortization | (4.9) |  | (5.9)
Carrying Value | $ 35.0 |  | $ 35.3

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(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. Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(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. + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 45 -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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