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Debt - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Basis spread on variable rate (percent) 1.75%  
Maximum borrowing capacity, revolving credit facility $ 75  
Maximum borrowing capacity, swing line advances 20  
Amended LOC agreement facility capacity $ 5  
Required collateral equal to the aggregate stated amount of the LOCs (percent) 103.00%  
LOC collateral percentage for draws in non-U.S. currencies (percent) 110.00%  
Amount secured by cash collateral $ 2  
Debt instrument, collateral amount 1  
Short-term borrowings    
Debt Instrument [Line Items]    
Short-term borrowings $ 5 $ 0
Maximum    
Debt Instrument [Line Items]    
Financial maintenance covenant 3.50  
London Interbank Offered Rate (LIBOR) | Minimum    
Debt Instrument [Line Items]    
Basis spread on variable rate (percent) 1.00%  
London Interbank Offered Rate (LIBOR) | Maximum    
Debt Instrument [Line Items]    
Basis spread on variable rate (percent) 2.00%  
Term Loan    
Debt Instrument [Line Items]    
Face amount $ 350  
LOC Facility issued by local affiliates    
Debt Instrument [Line Items]    
Amount secured by cash collateral 11  
Revolving Credit Facility    
Debt Instrument [Line Items]    
Face amount 400  
Affiliated Entity    
Debt Instrument [Line Items]    
Working capital facility availability $ 191