Consolidated Balance Sheets - USD ($) shares in Millions, $ in Millions	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Cash and cash equivalents	$ 143.2	$ 167.3
Receivables, net of allowance	190.1	227.6
Income tax receivable	4.7	5.4
Inventories:
Raw materials and supplies	342.9	278.4
Work in process	137.8	91.6
Finished goods	27.7	62.9
Inventory, Net	508.4	432.9
Restricted cash, including partially-owned subsidiaries of $59.6 and $58.6	208.2	135.1
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,926.6 and $1,927.7	9,106.8	9,105.6
Less accumulated depreciation, including partially-owned subsidiaries of $580.1 and $568.4	2,303.2	2,258.7
Property, Plant and Equipment, Net	6,803.6	6,846.9
Goodwill	154.2	154.2
Other assets	278.8	266.5
Total assets	8,291.2	8,235.9
Liabilities and Equity [Abstract]
Accounts payable	237.5	206.4
Accrued liabilities	271.3	307.4
Debt:
Recourse	448.8	398.7
Non-Recourse Debt	4,778.7	4,771.9
Total debt	5,227.5	5,170.6
Deferred income taxes	1,110.6	1,106.8
Other liabilities	148.7	147.9
Total liabilities	$ 6,995.6	$ 6,939.1
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred Stock, Shares Authorized	1.5	1.5
Preferred Stock, Shares Subscribed but Unissued	1.5	1.5
Preferred stock – 1.5 shares authorized and unissued	$ 0.0	$ 0.0
Common Stock, Shares Authorized	400.0	400.0
Common stock – 400.0 shares authorized	$ 0.8	$ 0.8
Capital in excess of par value	5.3	0.0
Retained earnings	1,026.6	1,046.6
Accumulated other comprehensive income (loss)	0.1	(17.0)
Treasury stock	(0.8)	(0.6)
Total Equity	1,032.0	1,029.8
Noncontrolling interest	263.6	267.0
Total stockholders' equity	1,295.6	1,296.8
Total liabilities and stockholders' equity	8,291.2	8,235.9
Partially-owned subsidiaries
Inventories:
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,926.6 and $1,927.7	1,926.6	1,927.7
Less accumulated depreciation, including partially-owned subsidiaries of $580.1 and $568.4	580.1	568.4
Debt:
Non-Recourse Debt	1,207.8	1,216.1
Wholly-owned subsidiaries
Debt:
Non-Recourse Debt	$ 3,570.9	$ 3,555.8