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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income $ 1,391 $ 1,127 $ 994
Reconciliation of net income to net cash provided by operating activities:      
Depreciation and amortization 375 482 249
Inventory valuation adjustments 7 128 4
Equity-indexed compensation expense 116 101 110
Gain on sales of linefill and base gas (7) (19) (21)
Settlement of terminated interest rate and foreign currency hedging instruments 8 (112) 12
Other (10) (1) 15
Changes in assets and liabilities, net of acquisitions:      
Trade accounts receivable and other (186) 218 83
Inventory 134 (180) 518
Accounts payable and other current liabilities 126 (504) 401
Net cash provided by operating activities 1,954 1,240 2,365
CASH FLOWS FROM INVESTING ACTIVITIES      
Cash paid in connection with acquisitions, net of cash acquired (Note 3) (28) (2,156) (1,390)
Change in restricted cash     20
Additions to property, equipment and other (1,613) (1,204) (635)
Cash received for sales of linefill and base gas 40 65 56
Cash paid for purchases of linefill and base gas (122) (109) (78)
Investment in unconsolidated entities (133) (76)  
Proceeds from sales of assets 200 22 12
Cash received upon formation of equity-method investment   59  
Other investing activities 3 7 (5)
Net cash used in investing activities (1,653) (3,392) (2,020)
CASH FLOWS FROM FINANCING ACTIVITIES      
Net borrowings/(repayments) under PAA senior secured hedged inventory facility (Note 9) (660) 591 (425)
Net borrowings/(repayments) under PAA senior unsecured revolving credit facility (Note 9) (92) 59 (793)
Net borrowings/(repayments) under PNG credit agreement (Note 9) (382) 61 62
Net borrowings under PAA commercial paper program (Note 9) 1,110    
Proceeds from the issuance of senior notes 699 1,996 597
Repayments of senior notes (250) (500) (200)
Net proceeds from the issuance of common units (Note 10) 490 979 889
Net proceeds from the issuance of PNG common units 40   370
Distributions paid to common unitholders (Note 10) (791) (684) (575)
Distributions paid to general partner (Note 10) (369) (285) (216)
Distributions paid to noncontrolling interests (49) (48) (40)
Other financing activities (27) (18) (14)
Net cash provided by/(used in) financing activities (281) 2,151 (345)
Effect of translation adjustment on cash (3) (1) (10)
Net increase/(decrease) in cash and cash equivalents 17 (2) (10)
Cash and cash equivalents, beginning of period 24 26 36
Cash and cash equivalents, end of period 41 24 26
Cash paid for:      
Interest, net of amounts capitalized 305 295 254
Income taxes, net of amounts refunded $ 37 $ 71 $ 11