Equity Equity, Earnings Per Unit (Details) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2016
USD ($)
$ / shares
shares
|
Sep. 30, 2015
USD ($)
$ / shares
shares
|
Sep. 30, 2016
USD ($)
$ / shares
shares
|
Sep. 30, 2015
USD ($)
$ / shares
shares
|
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| Incentive Distribution, Distribution Split Marginal Percentage | 50.00% | ||||||||||||||||
| Incentive Distribution, Minimum Distribution Level | $ / shares | 0.3881 | ||||||||||||||||
| General Partner Distributions | $ 3 | $ 8 | |||||||||||||||
| Net earnings | [1] | $ 87 | 71 | $ 259 | [2] | 206 | [2] | ||||||||||
| Net earnings attributable to noncontrolling interest | [1] | 0 | (3) | 0 | (19) | ||||||||||||
| Special Allocations Of Net Earnings | [3] | 2 | 0 | 2 | 0 | ||||||||||||
| Net earnings, excluding noncontrolling interest and including Special Allocations | 89 | 68 | 261 | 187 | |||||||||||||
| Distribution Made to Limited Partner, Cash Distributions Declared | 175 | ||||||||||||||||
| Undistributed Earnings (Loss) Allocated to Participating Securities, Basic | $ (42) | $ (18) | $ (101) | $ (50) | |||||||||||||
| Common units - basic | shares | [1] | 101.4 | 86.6 | 96.7 | 82.5 | ||||||||||||
| Common units - diluted | shares | [1] | 101.4 | 86.7 | 96.8 | 82.6 | ||||||||||||
| Common - basic | $ / shares | [1] | $ 0.46 | $ 0.62 | $ 1.58 | $ 1.85 | ||||||||||||
| Common - diluted | $ / shares | [1] | $ 0.46 | $ 0.62 | $ 1.58 | $ 1.85 | ||||||||||||
| General Partner | |||||||||||||||||
| General Partner Distributions | $ 3 | $ 1 | $ 7 | $ 4 | |||||||||||||
| Incentive Distribution, Subsequent Distribution Amount | [4] | 39 | 19 | 105 | 47 | ||||||||||||
| Undistributed Earnings (Loss) Allocated to Participating Securities, Basic | [5] | (2) | (6) | (6) | (17) | ||||||||||||
| Participating Securities, Distributed and Undistributed Earnings (Loss), Basic | 40 | 14 | 106 | 34 | |||||||||||||
| Common | |||||||||||||||||
| Special Allocations Of Net Earnings | [3] | (2) | 0 | (2) | 0 | ||||||||||||
| Distribution Made to Limited Partner, Cash Distributions Declared | 89 | 66 | 250 | 186 | |||||||||||||
| Undistributed Earnings (Loss) Allocated to Participating Securities, Basic | (40) | (12) | (95) | (33) | |||||||||||||
| Participating Securities, Distributed and Undistributed Earnings (Loss), Basic | $ 47 | $ 54 | $ 153 | $ 153 | |||||||||||||
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