Consolidated Balance Sheets - USD ($) shares in Millions, $ in Millions	Jun. 30, 2023	Dec. 31, 2022
ASSETS
Cash and cash equivalents	$ 91.7	$ 79.6
Receivables, net of allowance	415.6	323.5
Income tax receivable	15.3	7.8
Inventories:
Raw materials and supplies	430.8	423.6
Work in process	135.4	164.2
Finished goods	56.0	41.6
Inventory, Net	622.2	629.4
Restricted cash, including partially-owned subsidiaries of $69.1 and $74.4	204.9	214.7
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,924.2 and $1,917.6	9,461.6	9,272.6
Less accumulated depreciation, including partially-owned subsidiaries of $623.0 and $599.0	2,432.4	2,385.8
Property, Plant and Equipment, Net	7,029.2	6,886.8
Goodwill	222.1	195.9
Other assets	421.0	386.6
Total assets	9,022.0	8,724.3
Liabilities and Equity [Abstract]
Accounts payable	330.8	287.5
Accrued liabilities	310.6	261.0
Debt:	5,832.6	5,607.6
Deferred income taxes	1,138.6	1,134.7
Other liabilities	160.4	163.9
Total liabilities	$ 7,773.0	$ 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	5.9	0.0
Retained earnings	971.0	992.6
Accumulated other comprehensive income	17.6	19.7
Treasury stock	(0.7)	(0.7)
Total Equity	994.6	1,012.4
Noncontrolling interest	254.4	257.2
Total stockholders' equity	1,249.0	1,269.6
Total liabilities and stockholders' equity	9,022.0	8,724.3
Recourse
Liabilities and Equity [Abstract]
Debt:	793.9	624.1
Nonrecourse
Liabilities and Equity [Abstract]
Debt:	5,038.7	4,983.5
Wholly-owned subsidiaries | Nonrecourse
Liabilities and Equity [Abstract]
Debt:	3,870.8	3,800.7
Partially-owned subsidiaries
Inventories:
Property, plant, and equipment, at cost, including partially-owned subsidiaries of $1,924.2 and $1,917.6	1,924.2	1,917.6
Less accumulated depreciation, including partially-owned subsidiaries of $623.0 and $599.0	623.0	599.0
Partially-owned subsidiaries | Nonrecourse
Liabilities and Equity [Abstract]
Debt:	$ 1,167.9	$ 1,182.8