CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Total revenues	$ 5,360.1	$ 4,459.7	$ 16,375.0	$ 11,508.2
Costs and expenses:
Product purchases and fuel	4,306.3	3,614.7	13,557.8	9,159.8
Operating expenses	261.3	189.4	660.6	545.3
Depreciation and amortization expense	287.2	222.8	766.2	650.9
General and administrative expense	79.1	67.3	217.2	192.4
Other operating (income) expense	(3.8)	(1.0)	(4.4)	3.4
Income (loss) from operations	430.0	366.5	1,177.6	956.4
Other income (expense):
Interest expense, net	(125.8)	(91.0)	(300.5)	(284.2)
Equity earnings (loss)	1.7	14.3	8.7	38.9
Gain (loss) from financing activities			(49.6)	(16.6)
Gain (loss) from sale of equity method investment			435.9
Other, net	(14.6)	0.2	(14.6)	0.3
Income (loss) before income taxes	291.3	290.0	1,257.5	694.8
Income tax (expense) benefit	(12.0)	(2.0)	(122.0)	(23.5)
Net income (loss)	279.3	288.0	1,135.5	671.3
Less: Net income (loss) attributable to noncontrolling interests	86.2	105.8	258.0	286.5
Net income (loss) attributable to Targa Resources Corp.	193.1	182.2	877.5	384.8
Premium on repurchase of noncontrolling interests, net of tax			53.1
Dividends on Series A Preferred Stock		21.8	30.0	65.5
Deemed dividends on Series A Preferred Stock			215.5
Net income (loss) attributable to common shareholders	$ 193.1	$ 160.4	$ 578.9	$ 319.3
Net income (loss) per common share - basic	$ 0.85	$ 0.70	$ 2.54	$ 1.40
Net income (loss) per common share - diluted	$ 0.84	$ 0.66	$ 2.50	$ 1.38
Weighted average shares outstanding - basic	226.6	228.8	227.6	228.6
Weighted average shares outstanding - diluted	230.3	276.4	231.5	231.6
Sales of Commodities [Member]
Revenues:
Total revenues	$ 4,800.3	$ 4,118.1	$ 14,990.7	$ 10,577.3
Fees from Midstream Services [Member]
Revenues:
Total revenues	$ 559.8	$ 341.6	$ 1,384.3	$ 930.9