Equity, Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Jul. 20, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Jun. 30, 2016 |
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| Distribution Made to Member or Limited Partner | ||||||||||
| General partner distribution amount forfeited | $ 2 | $ 5 | ||||||||
| Quarterly Distribution Per Unit | $ 0.810 | $ 0.780 | ||||||||
| Total Cash Distribution including general partner IDRs | $ 123 | $ 108 | $ 98 | |||||||
| Date of Distribution | Aug. 12, 2016 | May 13, 2016 | Feb. 12, 2016 | |||||||
| Unitholders Record Date | Aug. 02, 2016 | May 02, 2016 | Feb. 02, 2016 | |||||||
| Distribution Made to Limited Partner, Declaration Date | Oct. 18, 2016 | |||||||||
| Subsequent Event | ||||||||||
| Distribution Made to Member or Limited Partner | ||||||||||
| Quarterly Distribution Per Unit | $ 0.842 | $ 0.8750 | [1] | |||||||
| Total Cash Distribution including general partner IDRs | [1] | $ 131 | ||||||||
| Date of Distribution | [1] | Nov. 14, 2016 | ||||||||
| Unitholders Record Date | [1] | Nov. 04, 2016 | ||||||||
| Distribution Made to Limited Partner, Declaration Date | Jul. 20, 2016 | |||||||||
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