v3.8.0.1

Related-Party Transactions Related-Party Transactions, Summary of Affiliate Transactions (Details) - USD ($)
$ / shares in Units, $ in Millions

3 Months Ended

9 Months Ended

Nov. 14, 2017

Oct. 18, 2017

Sep. 30, 2017

Jun. 30, 2017

Mar. 31, 2017

Dec. 31, 2016

Sep. 30, 2016

Sep. 30, 2017

Sep. 30, 2016

Cost of Reimbursable Expense

$ 7

$ 3

$ 12

$ 12

Concentration Risk, Percentage

49.00%

60.00%

49.00%

Cash Dividends Paid to Parent Company

$ 223

Distribution Made to Limited Partner, Distributions Declared, Per Unit

$ 0.9852

^[1],[2]

$ 0.9710

$ 0.9400

$ 0.9100

Distribution Made to Limited Partner, Distribution Date

Nov. 14, 2017

Aug. 14, 2017

May 15, 2017

Feb. 14, 2017

Subsequent Event

Distribution Made to Limited Partner, Declaration Date

Oct. 18, 2017

Distribution Made to Limited Partner, Cash Distributions Paid

$ 125

[1]	(a)Represents cash distributions declared and paid during the nine months ended September 30, 2017, relating to the fourth quarter of 2016 through the second quarter of 2017.
[2]	(b)See reconciliation of general partner and limited partner’s earnings to amounts recorded to equity for the periods presented.

X

- Definition

This element represents disclosure of the total aggregate cash dividends paid to the entity by consolidated subsidiaries, by unconsolidated subsidiaries, and by 50% or less owned persons accounted for using the equity method.

+ References

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-Publisher FASB
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-SubTopic 10
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Cost associated with reimbursable income. This occurs when a services entity incurs expenses on behalf of the client and passes through the cost of reimbursable expenses to a client.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of cash distribution paid to unit-holder of limited partnership (LP).

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Date of declaration for distribution of cash or unit to limited partner of limited partnership (LP), in CCYY-MM-DD format.

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Date of distribution for distribution of cash or unit to limited partner of limited partnership (LP), in CCYY-MM-DD format.

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Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

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