Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 778.6	$ 563.4
Short-term marketable securities	319.5	234.7
Receivables, net of allowance for doubtful accounts of $28.7 and $11.8	369.7	378.7
Income tax receivable	29.0	102.1
Inventories:
Raw materials and supplies	296.7	302.5
Work in process	179.0	189.5
Finished goods	164.9	173.8
Inventory, net	640.6	665.8
Restricted cash, including partially-owned subsidiaries of $62.9 and $78.4	195.2	178.2
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,985.9 and $1,979.8	8,385.2	7,981.0
Less accumulated depreciation, including partially-owned subsidiaries of $418.0 and $364.9	(2,250.5)	(2,014.2)
Property, plant, and equipment, net	6,134.7	5,966.8
Goodwill	780.3	754.1
Other assets	295.6	281.5
Total assets	9,543.2	9,125.3
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	175.4	156.1
Accrued liabilities	440.0	426.1
Debt:
Recourse, net of unamortized discount of $8.5 and $27.1	866.8	850.6
Non-recourse debt	2,375.6	2,206.0
Total debt	3,242.4	3,056.6
Deferred income	20.5	23.5
Deferred income taxes	743.2	1,072.9
Other liabilities	63.7	79.0
Total liabilities	4,685.2	4,814.2
Stockholders’ equity:
Preferred stock – 1.5 shares authorized and unissued	0.0	0.0
Common stock – shares authorized at December 31, 2017 - 400.0; at December 31, 2016 - 400.0; shares issued and outstanding at December 31, 2017 – 150.9; at December 31, 2016 – 152.2	1.6	1.6
Capital in excess of par value	482.5	534.6
Retained earnings	4,123.4	3,497.3
Accumulated other comprehensive loss	(104.8)	(113.5)
Treasury stock – shares at December 31, 2017 – 0.1; at December 31, 2016 – 0.1	(1.6)	(1.5)
Total stockholders' equity	4,501.1	3,918.5
Noncontrolling interest	356.9	392.6
Total stockholders' equity, including portion attributable to noncontrolling interest	4,858.0	4,311.1
Total liabilities and stockholders' equity	9,543.2	9,125.3
Wholly-owned subsidiaries
Debt:
Non-recourse debt	1,024.8	840.0
Partially-owned subsidiaries
Inventories:
Restricted cash, including partially-owned subsidiaries of $62.9 and $78.4	62.9	78.4
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,985.9 and $1,979.8	1,985.9	1,979.8
Less accumulated depreciation, including partially-owned subsidiaries of $418.0 and $364.9	(418.0)	(364.9)
Debt:
Non-recourse debt	$ 1,350.8	$ 1,366.0