CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues:
Total revenues		$ 3,851.8	$ 3,896.6	$ 11,976.2	$ 11,820.8
Costs and expenses:
Product purchases and fuel		2,365.0	2,690.0	7,780.4	7,777.9
Operating expenses		301.0	277.7	869.7	808.4
Depreciation and amortization expense		355.4	331.3	1,044.5	988.2
General and administrative expense		102.6	90.0	287.4	253.4
Other operating (income) expense		(0.4)	2.5	(0.7)	2.0
Income (loss) from operations		728.2	505.1	1,994.9	1,990.9
Other income (expense):
Interest expense, net		(184.9)	(175.1)	(589.5)	(509.8)
Equity earnings (loss)		2.2	3.0	7.9	6.2
Gain (loss) from financing activities				(0.8)	0.0
Other, net		(0.4)	(0.1)	1.1	(4.9)
Income (loss) before income taxes		545.1	332.9	1,413.6	1,482.4
Income tax (expense) benefit		(97.0)	(53.9)	(274.1)	(260.7)
Net income (loss)		448.1	279.0	1,139.5	1,221.7
Less: Net income (loss) attributable to noncontrolling interests		60.7	59.0	178.5	175.4
Net income (loss) attributable to Targa Resources Corp.		387.4	220.0	961.0	1,046.3
Premium on repurchase of noncontrolling interests, net of tax	[1]				490.7
Net income (loss) attributable to common shareholders		$ 387.4	$ 220.0	$ 961.0	$ 555.6
Net income (loss) per common share - basic		$ 1.76	$ 0.97	$ 4.32	$ 2.44
Net income (loss) per common share - diluted		$ 1.75	$ 0.97	$ 4.30	$ 2.43
Weighted average shares outstanding - basic		219.0	223.8	221.0	225.2
Weighted average shares outstanding - diluted		220.0	225.1	222.0	226.5
Sales of Commodities [Member]
Revenues:
Total revenues		$ 3,217.0	$ 3,374.3	$ 10,126.2	$ 10,314.0
Fees from Midstream Services [Member]
Revenues:
Total revenues		$ 634.8	$ 522.3	$ 1,850.0	$ 1,506.8

[1] Represents premium paid on the Grand Prix Transaction. See Note 4 – Joint Ventures and Acquisitions.