CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
REVENUES
Supply and Logistics segment revenues	$ 19,004	$ 21,927	$ 42,114
Transportation segment revenues	632	697	774
Facilities segment revenues	546	528	576
Total revenues	20,182	23,152	43,464
COSTS AND EXPENSES
Purchases and related costs	17,233	19,726	39,500
Field operating costs	1,182	1,454	1,456
General and administrative expenses	282	281	331
Depreciation and amortization	495	433	386
Total costs and expenses	19,192	21,894	41,673
OPERATING INCOME	990	1,258	1,791
OTHER INCOME/(EXPENSE)
Equity earnings in unconsolidated entities	195	183	108
Interest expense (net of capitalized interest of $47, $57 and $48, respectively)	(480)	(443)	(357)
Other income/(expense), net	33	(7)	(2)
INCOME BEFORE TAX	738	991	1,540
Current income tax expense	(85)	(84)	(71)
Deferred income tax benefit/(expense)	7	(98)	(141)
NET INCOME	660	809	1,328
Net income attributable to noncontrolling interests	(566)	(691)	(1,258)
NET INCOME ATTRIBUTABLE TO PAGP	$ 94	$ 118	$ 70
Class A Shares
OTHER INCOME/(EXPENSE)
BASIC NET INCOME PER CLASS A SHARE (in dollars per share)	$ 0.94	$ 1.41	$ 1.28
DILUTED NET INCOME PER CLASS A SHARE (in dollars per share)	$ 0.94	$ 1.41	$ 1.25
BASIC WEIGHTED AVERAGE CLASS A SHARES OUTSTANDING (in shares)	99	83	54
DILUTED WEIGHTED AVERAGE CLASS A SHARES OUTSTANDING (in shares)	99	83	244