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Cover Page
Aug. 04, 2020
May 05, 2020
Cover [Abstract]    
Document Type 8-K  
Document Period End Date Aug. 04, 2020  
Entity Registrant Name   PLAINS ALL AMERICAN PIPELINE LP
Entity Incorporation, State or Country Code DE  
Entity File Number 1-14569  
Entity Tax Identification Number 76-0582150  
Entity Address, Address Line One 333 Clay Street  
Entity Address, Address Line Two Suite 1600  
Entity Address, City or Town Houston  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 77002  
City Area Code 713  
Local Phone Number 646-4100  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Entity Emerging Growth Company false  
Title of 12(b) Security Common Units  
Trading Symbol PAA  
Security Exchange Name NYSE  
Entity Central Index Key   0001070423
Amendment Flag   false