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Intangible Assets and Goodwill, Goodwill (Details) $ in Millions | Jun. 30, 2016 USD ($)
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Changes in carrying amount of goodwill [Roll Forward] |
Balance at beginning of period | $ 5,745.2
Balance at end of period | 5,745.2
NGL Pipelines & Services [Member] |
Changes in carrying amount of goodwill [Roll Forward] |
Balance at beginning of period | 2,651.7
Balance at end of period | 2,651.7
Crude Oil Pipelines & Services [Member] |
Changes in carrying amount of goodwill [Roll Forward] |
Balance at beginning of period | 1,841.0
Balance at end of period | 1,841.0
Natural Gas Pipelines & Services [Member] |
Changes in carrying amount of goodwill [Roll Forward] |
Balance at beginning of period | 296.3
Balance at end of period | 296.3
Petrochemical & Refined Products Services [Member] |
Changes in carrying amount of goodwill [Roll Forward] |
Balance at beginning of period | 956.2
Balance at end of period | $ 956.2

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: 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=35741047&loc=d3e13816-109267 Reference 2: 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 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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