Equity, Allocations of Net Earnings (Details) - USD ($) $ in Millions |
12 Months Ended | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Net Income Allocation | ||||||||||||||||||||
| Net earnings attributable to partners | [1] | $ 272 | $ 99 | $ 80 | ||||||||||||||||
| Allocation of Predecessor impact to general partner interest | [1] | 17 | [2] | 23 | [3] | 56 | ||||||||||||||
| Special Allocation | [4] | 0 | 7 | 0 | ||||||||||||||||
| Net earnings available to partners | $ 203 | $ 65 | $ 69 | |||||||||||||||||
| General partner’s ownership interest | 2.00% | 2.00% | 2.00% | |||||||||||||||||
| Total general partner’s interest in net earnings (loss) | [1] | $ (73) | $ (43) | $ (12) | ||||||||||||||||
| General Partner | ||||||||||||||||||||
| Net Income Allocation | ||||||||||||||||||||
| Net earnings attributable to partners | 12 | |||||||||||||||||||
| General partner’s IDRs | [5],[6] | (69) | (41) | (11) | ||||||||||||||||
| Allocation of Predecessor impact to general partner interest | 0 | 0 | 0 | |||||||||||||||||
| General partner’s allocated interest in net earnings | 5 | 2 | 1 | |||||||||||||||||
| Total general partner’s interest in net earnings (loss) | 57 | 20 | (44) | |||||||||||||||||
| Equity of Predecessors | ||||||||||||||||||||
| Net Income Allocation | ||||||||||||||||||||
| Net earnings attributable to partners | [7] | 0 | ||||||||||||||||||
| Allocation of Predecessor impact to general partner interest | [7] | $ 17 | $ 23 | $ 56 | ||||||||||||||||
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