Equity Equity, Earnings Per Unit (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
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| General partner distribution amount forfeited | $ 2 | $ 5 | |||||||
| Net earnings | 83 | $ 67 | 175 | $ 137 | |||||
| Net Income (Loss) Attributable to Noncontrolling Interest | 0 | 6 | 0 | 16 | |||||
| Net Income (Loss) Attributable to Parent | 83 | 61 | 175 | 121 | |||||
| Distribution Made to Limited Partner, Cash Distributions Declared | (109) | ||||||||
| Undistributed Earnings (Loss) Allocated to Participating Securities, Basic | $ (40) | $ (20) | $ (56) | $ (30) | |||||
| Common units - basic | 95.2 | 80.7 | 94.4 | 80.5 | |||||
| Common units - diluted | 95.2 | 80.8 | 94.4 | 80.6 | |||||
| Common - basic | $ 0.48 | $ 0.60 | $ 1.12 | $ 1.23 | |||||
| Common - diluted | $ 0.48 | $ 0.60 | $ 1.12 | $ 1.23 | |||||
| General Partner | |||||||||
| Net earnings | $ 68 | ||||||||
| General Partner Distributions | $ 2 | $ 2 | 4 | $ 3 | |||||
| Incentive Distribution, Subsequent Distribution Amount | [1] | 36 | 15 | 66 | 28 | ||||
| Undistributed Earnings (Loss) Allocated to Participating Securities, Basic | [2] | (1) | 5 | (1) | 9 | ||||
| Participating Securities, Distributed and Undistributed Earnings (Loss), Basic | 37 | 12 | 69 | 22 | |||||
| Common | |||||||||
| Net earnings | 107 | ||||||||
| Distribution Made to Limited Partner, Cash Distributions Declared | (85) | (64) | (161) | (120) | |||||
| Undistributed Earnings (Loss) Allocated to Participating Securities, Basic | (39) | (15) | (55) | (21) | |||||
| Participating Securities, Distributed and Undistributed Earnings (Loss), Basic | $ 46 | $ 49 | $ 106 | $ 99 | |||||
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