Commitments and Contingencies (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2019	Dec. 31, 2018
Scheduled maturities of debt obligations [Abstract]
Principal amount of consolidated debt obligations outstanding	$ 27,121.4	$ 26,420.6
Litigation matters [Member]
Loss Contingencies [Line Items]
Litigation accruals on an undiscounted basis	0.5	$ 0.5
Litigation matters [Member] \| ETP Lawsuit [Member]
Loss Contingencies [Line Items]
Loss contingency, damages awarded	319.4
Loss contingency, total damages sought	535.8
Loss contingency, disgorgement damages sought	150.0
Prejudgment interest	$ 66.4
Post-judgment interest rate	5.00%
Positive Outcome of Litigation [Member]
Gain Contingencies [Line Items]
Counterclaim settlement awarded	$ 0.8

The value (monetary amount) of the award the plaintiff seeks in the legal matter related to disgorgement.

No definition available.

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- Definition

The rate at which interest will accrue on legal award after the judgment has been entered by the court.

+ References

No definition available.

+ Details

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- Definition

Interest accruing on the amount of a legal award from the time of the injury or damage to the time the judgment is entered by the court.

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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-Topic 210
-SubTopic 10
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-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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- References

No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349

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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

+ Details

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