v3.22.0.1
Subsequent Events​ (Details) - USD ($)
1 Months Ended 12 Months Ended
Jan. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Feb. 16, 2022
Jan. 05, 2022
May 13, 2020
Jan. 02, 2020
Subsequent Event [Line Items]                
Cash contributions to pension plans   $ 458,000,000 $ 271,000,000 $ 3,000,000        
Cash and cash equivalents   335,000,000 787,000,000          
Receivables from customers, less allowances of $1 in both 2021 and 2020   922,000,000 631,000,000         $ 281,000,000
Subsequent events | Receivables Purchase Agreement                
Subsequent Event [Line Items]                
Sale of Customer Receivables $ 113,000,000              
Receivables Purchase Agreement           $ 100,000,000    
Cash and cash equivalents           28,000,000    
Receivables from customers, less allowances of $1 in both 2021 and 2020           $ 77,000,000    
Revolving Credit Facility | ABL Credit Agreement                
Subsequent Event [Line Items]                
Revolving credit facility, maximum borrowing capacity             $ 800,000,000  
Revolving Credit Facility | ABL Credit Agreement | Credit Facility                
Subsequent Event [Line Items]                
Debt Instrument, Unused Borrowing Capacity, Amount   790,000,000            
Revolving credit facility, current borrowing capacity   800,000,000            
Revolving Credit Facility | ABL Credit Agreement | Credit Facility | Subsequent events                
Subsequent Event [Line Items]                
Revolving credit facility, current borrowing capacity         $ 1,200,000,000      
Revolving credit facility, maximum borrowing capacity         350,000,000      
Debt Issuance Costs, Line of Credit Arrangements, Net         $ 1,000,000      
Funded                
Subsequent Event [Line Items]                
Cash contributions to pension plans   $ 458,000,000 $ 271,000,000