CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
REVENUES
Total revenues	$ 16,359	$ 9,930	$ 30,053	$ 18,313
COSTS AND EXPENSES
Purchases and related costs	15,324	9,277	28,109	16,669
Field operating costs	307	252	653	471
General and administrative expenses	80	74	163	142
Depreciation and amortization	243	197	475	375
(Gains)/losses on asset sales and asset impairments, net	(3)	369	(46)	370
Total costs and expenses	15,951	10,169	29,354	18,027
OPERATING INCOME/(LOSS)	408	(239)	699	286
OTHER INCOME/(EXPENSE)
Equity earnings in unconsolidated entities	104	33	201	121
Interest expense (net of capitalized interest of $1, $5, $2 and $10, respectively)	(99)	(107)	(206)	(213)
Other income/(expense), net	(118)	84	(155)	23
INCOME/(LOSS) BEFORE TAX	295	(229)	539	217
Current income tax expense	(30)	(1)	(48)	(3)
Deferred income tax (expense)/benefit	(26)	18	(43)	(33)
NET INCOME/(LOSS)	239	(212)	448	181
Net (income)/loss attributable to noncontrolling interests	(208)	143	(395)	(180)
NET INCOME/(LOSS) ATTRIBUTABLE TO PAGP	$ 31	$ (69)	$ 53	$ 1
Class A Shares
OTHER INCOME/(EXPENSE)
BASIC WEIGHTED AVERAGE CLASS A SHARES OUTSTANDING (shares)	194	194	194	194
DILUTED WEIGHTED AVERAGE CLASS A SHARES OUTSTANDING (shares)	194	194	194	194
BASIC NET INCOME/(LOSS) PER CLASS A SHARE (usd per share)	$ 0.16	$ (0.35)	$ 0.27	$ 0
DILUTED NET INCOME/(LOSS) PER CLASS A SHARE (usd per share)	$ 0.16	$ (0.35)	$ 0.27	$ 0
Product sales revenues
REVENUES
Total revenues	$ 16,007	$ 9,623	$ 29,388	$ 17,706
Services revenues
REVENUES
Total revenues	$ 352	$ 307	$ 665	$ 607