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Summary of Significant Accounting Policies - Narrative (Details)
12 Months Ended
Dec. 31, 2019
USD ($)
renewal_option
segment
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Disaggregation of Revenue [Line Items]      
Number of segments | segment 3    
Maximum amount of insurance risk of loss retained per occurrence | $ $ 3,000,000    
Trucks and Tractors | Minimum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessor 3 years    
Trucks and Tractors | Maximum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessor 7 years    
Trailers | Maximum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessor 10 years    
Revenue Earning Equipment | Minimum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessor 1 day    
Revenue Earning Equipment | Maximum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessor 1 year    
Facilities      
Disaggregation of Revenue [Line Items]      
Lease renewal term 5 years    
Facilities | Minimum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessee 3 years    
Number of renewal options | renewal_option 1    
Facilities | Maximum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessee 5 years    
Revenue Earning Equipment, Material Handling Equipment, Automated Washing Machines and Vehicles      
Disaggregation of Revenue [Line Items]      
Number of renewal options | renewal_option 0    
Revenue Earning Equipment, Material Handling Equipment, Automated Washing Machines and Vehicles | Minimum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessee 3 years    
Revenue Earning Equipment, Material Handling Equipment, Automated Washing Machines and Vehicles | Maximum      
Disaggregation of Revenue [Line Items]      
Term of operating lease as lessee 7 years    
Maintenance and Rental      
Disaggregation of Revenue [Line Items]      
Revenue from contract with customer | $ $ 950,000,000 $ 909,000,000 $ 832,000,000