Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Cash and Cash Equivalents, at Carrying Value	$ 166.2	$ 179.2
Accounts Receivable, after Allowance for Credit Loss	260.1	276.6
Income Taxes Receivable	14.7	40.4
Inventory, Raw Materials and Supplies, Net of Reserves	263.4	342.5
Inventory, Work in Process, Net of Reserves	108.8	119.3
Inventory, Finished Goods, Net of Reserves	61.2	62.9
Inventory, Net	433.4	524.7
Restricted Cash and Cash Equivalents	111.4	171.6
Property, Plant and Equipment, Gross	9,272.5	8,253.4
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	2,161.9	1,919.0
Property, Plant and Equipment, Net	7,110.6	6,334.4
Goodwill	208.8	208.8
Other Assets	396.2	253.5
Assets	8,701.4	7,989.2
Accounts Payable	203.9	212.1
Accrued Liabilities	342.1	368.3
Debt and Lease Obligation	522.8	397.4
Recourse And Non-Recourse Debt And Capital Lease Obligations	4,881.9	4,029.2
Deferred Gain on Sale of Property	0.0	17.7
Deferred Income Taxes and Other Tax Liabilities, Noncurrent	798.3	743.1
Other Liabilities	96.3	56.8
Liabilities	6,322.5	5,427.2
Preferred Stock, Value, Issued	0.0	0.0
Common Stock, Value, Issued	1.2	1.3
Additional Paid in Capital	0.0	1.2
Retained Earnings (Accumulated Deficit)	2,182.9	2,326.1
Accumulated Other Comprehensive Income (Loss), Net of Tax	(153.1)	(116.8)
Treasury Stock, Value	0.9	1.0
Stockholders' Equity Attributable to Parent	2,030.1	2,210.8
Stockholders' Equity Attributable to Noncontrolling Interest	348.8	351.2
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,378.9	2,562.0
Liabilities and Equity	8,701.4	7,989.2
Wholly Owned Subsidiaries [Member]
Non-Recourse Debt	3,080.7	2,316.6
Partially-Owned Subsidiaries [Member]
Property, Plant and Equipment, Gross	2,065.3	2,032.0
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	527.7	472.0
Non-Recourse Debt	$ 1,278.4	$ 1,315.2