CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2018		Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 219.8		$ 137.2
Trade receivables, net of allowances of $0.1 and $0.1 million at March 31, 2018 and December 31, 2017	745.6		827.6
Inventories	96.7		204.5
Assets from risk management activities	63.2		37.9
Other current assets	35.0		62.7
Total current assets	1,160.3		1,269.9
Property, plant and equipment	14,768.8		14,205.4
Accumulated depreciation	(3,927.2)		(3,775.4)
Property, plant and equipment, net	10,841.6		10,430.0
Intangible assets, net	2,120.1		2,165.8
Goodwill, net	256.6		256.6
Long-term assets from risk management activities	41.4		23.2
Investments in unconsolidated affiliates	313.4		221.6
Other long-term assets	19.8		21.5
Total assets	14,753.2	[1]	14,388.6
Current liabilities:
Accounts payable and accrued liabilities	1,030.7		1,186.9
Liabilities from risk management activities	53.6		79.7
Current debt obligations	300.0		350.0
Total current liabilities	1,384.3		1,616.6
Long-term debt	5,064.2		4,703.0
Long-term liabilities from risk management activities	18.1		19.6
Deferred income taxes, net	509.6		479.0
Other long-term liabilities	589.1		597.9
Contingencies (see Note 18)	0.0		0.0
Targa Resources Corp. stockholders' equity:
Common stock value	0.2		0.2
Preferred stock ($0.001 par value, after designation of Series A Preferred Stock: 98,800,000 shares authorized, no shares issued and outstanding)	0.0		0.0
Additional paid-in capital	6,141.2		6,302.8
Retained earnings (deficit)	(49.1)		(77.2)
Accumulated other comprehensive income (loss)	34.4		(29.9)
Treasury stock, at cost (594,151 shares as of March 31, 2018 and 585,640 shares as of December 31, 2017)	(36.0)		(35.6)
Total Targa Resources Corp. stockholders' equity	6,090.7		6,160.3
Noncontrolling interests in subsidiaries	873.7		595.7
Total owners' equity	6,964.4		6,756.0
Total liabilities, Series A Preferred Stock and owners' equity	14,753.2		14,388.6
Series A Preferred Stock [Member]
Targa Resources Corp. stockholders' equity:
Series A Preferred 9.5% Stock, $1,000 per share liquidation preference, (1,200,000 shares authorized, issued and outstanding 965,100 shares), net of discount (see Note 11)	$ 223.5		$ 216.5

[1] Assets in the Corporate and Eliminations column primarily include tax-related assets, cash, prepaids and debt issuance costs for our revolving credit facilities.