CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
REVENUES
Supply and Logistics segment revenues	$ 5,247	$ 10,788	$ 17,225	$ 32,988
Transportation segment revenues	172	198	538	574
Facilities segment revenues	132	141	393	443
Total revenues	5,551	11,127	18,156	34,005
COSTS AND EXPENSES
Purchases and related costs	4,701	10,166	15,591	31,116
Field operating costs	348	382	1,111	1,078
General and administrative expenses	60	79	219	260
Depreciation and amortization	110	97	327	294
Total costs and expenses	5,219	10,724	17,248	32,748
OPERATING INCOME	332	403	908	1,257
OTHER INCOME/(EXPENSE)
Equity earnings in unconsolidated entities	45	29	134	73
Interest expense (net of capitalized interest of $14, $12, $42 and $33, respectively)	(110)	(88)	(322)	(254)
Other expense, net	(4)	(4)	(7)	(2)
INCOME BEFORE TAX	263	340	713	1,074
Current income tax expense	(11)	(10)	(72)	(62)
Deferred income tax expense	(24)	(19)	(48)	(54)
NET INCOME	228	311	593	958
Net income attributable to noncontrolling interests	(196)	(295)	(500)	(913)
NET INCOME ATTRIBUTABLE TO PAGP	$ 32	$ 16	$ 93	$ 45
BASIC AND DILUTED NET INCOME PER CLASS A SHARE	$ 0.14	$ 0.12	$ 0.42	$ 0.33
BASIC AND DILUTED WEIGHTED AVERAGE CLASS A SHARES OUTSTANDING	225	136	220	136