CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 169.4	$ 219.0
Trade receivables, net of allowances of $[2.5] million and $2.2 million at June 30, 2023 and December 31, 2022	988.1	1,408.4
Inventories	312.3	393.8
Assets from risk management activities	194.2	179.9
Other current assets	64.8	155.5
Total current assets	1,728.8	2,356.6
Property, plant and equipment, net	14,890.4	14,214.6
Intangible assets, net	2,542.6	2,734.6
Long-term assets from risk management activities	48.5	24.5
Investments in unconsolidated affiliates	131.8	131.3
Other long-term assets	119.7	98.4
Total assets	19,461.8	19,560.0
Current liabilities:
Accounts payable	1,173.3	1,448.8
Accrued liabilities	283.0	289.5
Interest payable	227.2	174.0
Liabilities from risk management activities	51.1	320.1
Current debt obligations	586.0	834.3
Total current liabilities	2,320.6	3,066.7
Long-term debt	11,812.8	10,702.1
Long-term liabilities from risk management activities	24.1	140.1
Deferred income taxes, net	405.1	327.7
Other long-term liabilities	359.0	341.2
Contingencies (see Note 14)	0.0	0.0
Targa Resources Corp. stockholders' equity:
Common stock ($0.001 par value, 450,000,000 shares authorized as of June 30, 2023 and December 31, 2022)	0.2	0.2
Preferred stock ($0.001 par value, after designation of Series A Preferred Stock: 98,800,000 shares authorized, zero shares issued and outstanding)	0.0	0.0
Additional paid-in capital	3,045.8	3,702.3
Retained earnings (deficit)	199.5	(626.8)
Accumulated other comprehensive income (loss)	130.8	54.7
Treasury stock, at cost (15,159,865 shares as of June 30, 2023 and 11,896,829 shares as of December 31, 2022)	(701.1)	(464.7)
Total Targa Resources Corp. stockholders' equity	2,675.2	2,665.7
Noncontrolling interests	1,865.0	2,316.5
Total owners' equity	4,540.2	4,982.2
Total liabilities, Series A Preferred Stock and owners' equity	19,461.8	19,560.0
Series A Preferred Stock [Member]
Current liabilities:
Series A Preferred 9.5% Stock, $1,000 per share liquidation preference (1,200,000 shares authorized, zero shares issued and outstanding as of June 30, 2023 and December 31, 2022), net of discount	$ 0.0	$ 0.0