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Commitments and Contingencies - Summary of Material Contractual Obligations and Commercial Commitments (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Commitment And Contingencies [Line Items]  
Contractual Obligation, Total $ 14
Contractual Obligation, Less than 1 year 5
Contractual Obligation, 1 to 3 years 6
Contractual Obligation, 3 to 5 years 3
Standby Letters of Credit  
Commitment And Contingencies [Line Items]  
Letters of credit outstanding amount 3
Purchase obligations and other  
Commitment And Contingencies [Line Items]  
Contractual Obligation, Total 10
Contractual Obligation, Less than 1 year 3
Contractual Obligation, 1 to 3 years 4
Contractual Obligation, 3 to 5 years 3
Expected Commitment Fee Payments on 2015 Credit Facility  
Commitment And Contingencies [Line Items]  
Contractual Obligation, Total 4
Contractual Obligation, Less than 1 year 2
Contractual Obligation, 1 to 3 years $ 2