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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Millions
 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 418 $ 284
Reconciliation of net income to net cash provided by operating activities:    
Depreciation and amortization 126 131
Equity compensation expense 46 33
Gain on sale of linefill (15) (17)
Net cash received for terminated interest rate or foreign currency hedging instruments 12  
Other 5 8
Changes in assets and liabilities, net of acquisitions 380 (156)
Net cash provided by operating activities 972 283
CASH FLOWS FROM INVESTING ACTIVITIES    
Cash paid in connection with acquisitions, net of cash acquired (751) (184)
Change in restricted cash 20  
Additions to property, equipment and other (287) (215)
Net cash received/(paid) for sales and purchases of linefill and base gas (6) 18
Other investing activities (3) 3
Net cash used in investing activities (1,027) (378)
CASH FLOWS FROM FINANCING ACTIVITIES    
Net repayments on PAA's revolving credit facility (592) (150)
Net borrowings/(repayments) on PNG's revolving credit facility (34) 205
Net borrowings/(repayments) on PAA's hedged inventory facility (200) 100
Proceeds from the issuance of senior notes 597  
Repayments of senior notes (200)  
Net proceeds from the issuance of common units (Note 10) 503  
Cash received for sale of noncontrolling interest in a subsidiary 370 268
Distributions paid to common unitholders (Note 10) (280) (253)
Distributions paid to general partner (Note 10) (102) (82)
Distributions to noncontrolling interests (16) (1)
Other financing activities (3) (1)
Net cash provided by financing activities 43 86
Effect of translation adjustment on cash (1) (1)
Net decrease in cash and cash equivalents (13) (10)
Cash and cash equivalents, beginning of period 36 25
Cash and cash equivalents, end of period 23 15
Cash paid for interest, net of amounts capitalized 123 123
Cash paid for income taxes, net of amounts refunded $ 1 $ 20