CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
REVENUES
Total revenues	$ 57,342	$ 42,078	$ 23,290
COSTS AND EXPENSES
Purchases and related costs	53,176	38,504	20,431
Field operating costs	1,315	1,065	1,076
General and administrative expenses	330	298	276
Depreciation and amortization	968	777	656
(Gains)/losses on asset sales and asset impairments, net (Note 6, Note 7)	269	592	719
Goodwill impairment loss (Note 8)	0	0	2,515
Total costs and expenses	56,058	41,236	25,673
OPERATING INCOME/(LOSS)	1,284	842	(2,383)
OTHER INCOME/(EXPENSE)
Equity earnings in unconsolidated entities	403	274	355
Gains (losses) on/(impairment of) investments in unconsolidated entities, net (Note 7, Note 9)	346	2	(182)
Interest expense (net of capitalized interest of $5, $18 and $24, respectively)	(405)	(425)	(436)
Other income/(expense), net	(219)	19	39
INCOME/(LOSS) BEFORE TAX	1,409	712	(2,607)
Current income tax expense	(84)	(50)	(51)
Deferred income tax (expense)/benefit	(162)	(62)	218
NET INCOME/(LOSS)	1,163	600	(2,440)
Net (income)/loss attributable to noncontrolling interests	(995)	(540)	1,872
NET INCOME/(LOSS) ATTRIBUTABLE TO PAGP	$ 168	$ 60	$ (568)
Class A Shares
OTHER INCOME/(EXPENSE)
Basic weighted average Class A shares outstanding (in shares)	194	194	186
Basic net income/(loss) per Class A share (in dollars per share)	$ 0.86	$ 0.31	$ (3.06)
Diluted weighted average Class A shares outstanding (in shares)	194	194	246
Diluted net income/(loss) per Class A share (in dollars per share)	$ 0.86	$ 0.31	$ (3.07)
Product sales revenues
REVENUES
Total revenues	$ 55,948	$ 40,883	$ 22,058
Services revenues
REVENUES
Total revenues	$ 1,394	$ 1,195	$ 1,232