Consolidated Balance Sheets - USD ($) shares in Millions, $ in Millions	Sep. 30, 2023	Dec. 31, 2022
ASSETS
Cash and cash equivalents	$ 114.0	$ 79.6
Receivables, net of allowance	392.8	323.5
Income tax receivable	7.9	7.8
Inventories:
Raw materials and supplies	412.0	423.6
Work in process	181.2	164.2
Finished goods	86.2	41.6
Inventory, Net	679.4	629.4
Restricted cash, including partially-owned subsidiaries of $56.8 and $74.4	152.7	214.7
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,927.9 and $1,917.6	9,482.4	9,272.6
Less accumulated depreciation, including partially-owned subsidiaries of $635.0 and $599.0	2,491.2	2,385.8
Property, Plant and Equipment, Net	6,991.2	6,886.8
Goodwill	222.7	195.9
Other assets	412.7	386.6
Total assets	8,973.4	8,724.3
Liabilities and Equity [Abstract]
Accounts payable	325.8	287.5
Accrued liabilities	328.0	261.0
Debt:	5,782.4	5,607.6
Deferred income taxes	1,122.3	1,134.7
Other liabilities	161.5	163.9
Total liabilities	$ 7,720.0	$ 7,454.7
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	12.2	0.0
Retained earnings	971.1	992.6
Accumulated other comprehensive income	17.7	19.7
Treasury stock	(1.0)	(0.7)
Total Equity	1,000.8	1,012.4
Noncontrolling interest	252.6	257.2
Total stockholders' equity	1,253.4	1,269.6
Total liabilities and stockholders' equity	8,973.4	8,724.3
Recourse
Liabilities and Equity [Abstract]
Debt:	794.2	624.1
Nonrecourse
Liabilities and Equity [Abstract]
Debt:	4,988.2	4,983.5
Wholly-owned subsidiaries | Nonrecourse
Liabilities and Equity [Abstract]
Debt:	3,838.3	3,800.7
Partially-owned subsidiaries
Inventories:
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,927.9 and $1,917.6	1,927.9	1,917.6
Less accumulated depreciation, including partially-owned subsidiaries of $635.0 and $599.0	635.0	599.0
Partially-owned subsidiaries | Nonrecourse
Liabilities and Equity [Abstract]
Debt:	$ 1,149.9	$ 1,182.8