Acquisition (Details)
£ in Millions, $ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2020
GBP (£)
Dec. 31, 2020
USD ($)
Business Acquisition [Line Items]            
Revenue $ 5,036 $ 3,502 $ 9,810 $ 7,366    
Kuehne and Nagel Contract Logistics Operations            
Business Acquisition [Line Items]            
Revenue         £ 450 $ 585