XML 31 R40.htm IDEA: XBRL DOCUMENT
v3.19.3

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Jan. 01, 2019
--- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Net lease right-of-use assets recognized upon adoption of Topic 842 | $ 538 |
Lease liabilities recognized upon adoption of Topic 842 | $ 507 |
ASU 2016-02 |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Net lease right-of-use assets recognized upon adoption of Topic 842 |  | $ 560
Lease liabilities recognized upon adoption of Topic 842 |  | $ 570

X
- Definition Leases, Liability + References No definition available. + Details
Name: | paa_LeasesLiability
Namespace Prefix: | paa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Leases, Right-Of-Use Asset + References No definition available. + Details
Name: | paa_LeasesRightOfUseAsset
Namespace Prefix: | paa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |