Consolidated Statement of Partners' Equity - 3 months ended Mar. 31, 2018 - USD ($) shares in Millions, $ in Millions |
Total |
Common Units [Member] |
Subordinated Units [Member] |
General Partner [Member] |
|---|---|---|---|---|
| Units, Outstanding, beginning of period at Dec. 31, 2017 | 348.6 | 135.4 | ||
| Partners' equity, beginning of period at Dec. 31, 2017 | $ 639 | $ 1,670 | $ (1,043) | $ 12 |
| General partner units, Outstanding, beginning of period at Dec. 31, 2017 | 9.9 | 9.9 | ||
| Increase (Decrease) in Partners' Capital [Roll Forward] | ||||
| Net income | $ 335 | 236 | 92 | $ 7 |
| Distributions | (249) | $ (175) | $ (68) | (6) |
| Units, Outstanding, end of period at Mar. 31, 2018 | 348.6 | 135.4 | ||
| Partners' equity, end of period at Mar. 31, 2018 | $ 725 | $ 1,731 | $ (1,019) | $ 13 |
| General partner units, Outstanding, end of period at Mar. 31, 2018 | 9.9 | 9.9 |
| X | ||||||||||
- Definition The number of general partner units outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition The number of limited partner units outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of ownership interest of different classes of partners in limited partnership. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total distributions to each class of partners (i.e., general, limited and preferred partners). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|