CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 94.9	$ 66.7
Trade receivables, net of allowances of $1.1 million and $1.1 million	610.4	658.8
Inventories	88.5	150.7
Deferred income taxes	4.3	0.1
Assets from risk management activities	1.6	2.0
Other current assets	10.2	18.9
Total current assets	809.9	897.2
Property, plant and equipment	5,936.9	5,758.4
Accumulated depreciation	(1,472.6)	(1,408.5)
Property, plant and equipment, net	4,464.3	4,349.9
Intangible assets, net	638.1	653.4
Long-term assets from risk management activities	2.9	3.1
Investment in unconsolidated affiliate	53.7	55.9
Other long-term assets	86.3	89.1
Total assets	6,055.2	6,048.6
Current liabilities:
Accounts payable and accrued liabilities	745.5	761.8
Deferred income taxes	0	0.6
Liabilities from risk management activities	12.9	8.0
Total current liabilities	758.4	770.4
Long-term debt	2,891.7	2,989.3
Long-term liabilities from risk management activities	1.2	1.4
Deferred income taxes	138.8	135.5
Other long-term liabilities	66.1	60.7
Commitments and contingencies (see Note 16)
Targa Resources Corp. stockholders' equity:
Common stock ($0.001 par value, 300,000,000 shares authorized, 42,533,883 shares issued and 42,158,848 shares outstanding as of March 31, 2014, and 42,529,068 shares issued and 42,162,178 shares outstanding as of December 31, 2013)	0	0
Preferred stock ($0.001 par value, 100,000,000 shares authorized, no shares issued and outstanding as of March 31, 2014 and December 31, 2013)	0	0
Additional paid-in capital	149.2	151.6
Retained earnings	19.6	20.5
Accumulated other comprehensive loss	(0.8)	(0.5)
Treasury stock, at cost (375,035 shares as of March 31, 2014 and 366,890 as of December 31, 2013)	(23.6)	(22.8)
Total Targa Resources Corp. stockholders' equity	144.4	148.8
Noncontrolling interests in subsidiaries	2,054.6	1,942.5
Total owners' equity	2,199.0	2,091.3
Total liabilities and owners' equity	$ 6,055.2	$ 6,048.6