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Partners' Capital and Distributions (Details) (Class A Shares, USD $) In Millions, except Per Share data, unless otherwise specified | 0 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | --- | ---
Aug. 14, 2014 Second Quarter Distribution Subsequent Event | Jun. 30, 2014 Second Quarter Distribution Subsequent Event | May 15, 2014 First Quarter Distribution | Jun. 30, 2014 First Quarter Distribution | Feb. 14, 2014 Fourth quarter distribution | Jun. 30, 2014 Fourth quarter distribution
Partners Capital and Distribution |  |  |  |  |  |
Date Declared |  | Jul. 08, 2014 |  | Apr. 07, 2014 |  | Jan. 09, 2014
Distribution Date |  | Aug. 14, 2014 |  | May 15, 2014 |  | Feb. 14, 2014
Distributions to Class A shareholders | $ 25 |  | $ 23 |  | $ 17 |
Distribution per Class A share (in dollars per share) | $ 0.18340 |  | $ 0.17055 |  | $ 0.12505 |
Shareholders of record, date |  | Aug. 01, 2014 |  |  |  |

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