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Equity-Indexed Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]  
Summary of LTIP awards authorized
The following is a summary of the awards authorized under our LTIPs as of December 31, 2020 (in millions):

LTIP
PAA LTIP
Awards Authorized
Plains All American 2013 Long-Term Incentive Plan13.1 
Plains All American PNG Successor Long-Term Incentive Plan1.3 
Plains All American GP LLC 2006 Long-Term Incentive Tracking Unit Plan10.8 
Total (1)
25.2 

(1)Of the 25.2 million total awards authorized, 2.1 million awards are currently available. The remaining balance has already vested or is currently outstanding.