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Simplification Transactions - Agreement Terms (Details) $ / shares in Units, shares in Millions, $ in Millions |  |  |  | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 15, 2016 USD ($) shares | Nov. 14, 2016 USD ($) $ / shares | Aug. 12, 2016 $ / shares | Sep. 30, 2016 USD ($) | Jul. 11, 2016 director | Dec. 31, 2015 USD ($)
Simplification Transactions |  |  |  |  |  |
Other long-term debt |  |  |  | $ 504 |  | $ 677
Indirect Ownership | AAP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
General partner ownership interest |  |  |  | 2.00% |  |
Common Units | Cash Distributions | Second Quarter Distribution |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Distributions per common unit, paid | $ / shares |  |  | $ 0.70 |  |  |
PAGP | AAP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Threshold of private general partner ownership below which shareholders are eligible to participate in general partner Board of Director elections (as a percent) |  |  |  | 40.00% |  |
PAA GP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
General partner ownership interest |  |  |  | 2.00% |  |
Simplification Agreement | Exchange of AAP Class A Units and PAGP Class B Shares for PAGP Class A Shares |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Ratio for conversion or exchange of units |  |  |  |  | 1 |
Simplification Agreement | AAP | GP Holdings | Original Designating Parties |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Number of directors interest holder may designate to related party Board of Directors | director |  |  |  |  | 1 |
Simplification Agreement | AAP | GP Holdings | Original Designating Parties | Minimum |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Threshold ownership for interest holder to nominate a director to the related party Board of Directors (as a percent) |  |  |  |  | 10.00% |
Forecast | Common Units | Cash Distributions | Third Quarter Distribution |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Distributions per common unit, paid | $ / shares |  | $ 0.55 |  |  |  |
Quarterly level of distributions per common unit | $ / shares |  | $ 0.55 |  |  |  |
Forecast | Simplification Agreement | AAP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Issuance of common units (units) | shares | 245.5 |  |  |  |  |
Forecast | Simplification Agreement | PAGP | AAP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Ratio of PAGP Class A shares to underlying PAA Common Units held by AAP | 1 |  |  |  |  |
Forecast | Simplification Agreement | PAA GP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Economic general partner interest converted into non-economic interest | 2.00% |  |  |  |  |
AAP senior secured credit agreement | AAP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Other long-term debt |  |  |  | $ 603 |  |
AAP senior secured credit agreement | Forecast | Simplification Agreement | AAP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Assumption of outstanding debt | $ 641 |  |  |  |  |
AAP senior secured credit agreement | Forecast | Simplification Agreement | Third Quarter Distribution | AAP |  |  |  |  |  |
Simplification Transactions |  |  |  |  |  |
Estimated related party borrowings for true-up distribution if transactions not closed |  | $ 33 |  |  |  |

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