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Property, Plant and Equipment and Intangible Assets - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]            
Depreciation expense       $ 721.1 $ 800.0 $ 633.3
Non-cash pre-tax impairments $ 2,442.8     2,442.8 225.3  
Write-down/impairment charge of assets   $ 225.3   2,442.8 $ 225.3  
Weighted average discount rate percentage 14.00% 8.50%     8.50%  
Estimated amortization expense for intangible assets [Abstract]            
Amortization       144.0 $ 171.6 $ 182.6
2021       130.9    
2022       122.7    
2023       117.5    
2024       113.7    
2025       $ 110.6    
Weighted average amortization period, intangible assets       13 years    
Restatement Adjustment [Member]            
Property, Plant and Equipment [Line Items]            
Depreciation expense     $ 12.5      
Other Operating Income (Expense) [Member]            
Property, Plant and Equipment [Line Items]            
Non-cash loss recognized from assets written off       $ 32.4