XML 105 R82.htm IDEA: XBRL DOCUMENT v3.22.4
Fair Value Measurement (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Mar. 15, 2021
May 01, 2020
Interest rate swaps | Significant Other Observable Inputs (Level 2)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset $ 30 $ 0    
Fair value of derivative contracts 0 25    
Natural gas hedges | Significant Other Observable Inputs (Level 2)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset 1 1    
Fair value of derivative contracts 2 0    
Foreign currency contracts | Significant Other Observable Inputs (Level 2)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset 1 3    
Fair value of derivative contracts 0 1    
Term Loan Facility | Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of debt 876 895    
2022 Term Loan Facility | Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of debt 388 0    
Standard Bank Term Loan Facility | Significant Other Observable Inputs (Level 2)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of debt $ 77 92    
Senior Notes due 2029        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Annual Interest Rate 4.63%   4.625%  
Senior Notes due 2029 | Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of debt $ 893 1,071    
6.5% Senior Secured Notes due 2025 | Senior Notes        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Annual Interest Rate 6.50%     6.50%
6.5% Senior Secured Notes due 2025 | Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of debt $ 0 526    
Australian Government Loan | Significant Other Observable Inputs (Level 2)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of debt 1 1    
MGT Loan | Significant Other Observable Inputs (Level 2)        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of debt $ 30 $ 33