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Goodwill (Tables)
9 Months Ended
Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The following table presents the changes in the carrying amount of goodwill, by reportable segment:
 (in millions)CommercialGovernment ServicesTransportationTotal
Balance at December 31, 2021$661 $617 $61 $1,339 
Foreign currency translation(33)(7)(13)(53)
Balance at September 30, 2022$628 $610 $48 $1,286 
Gross goodwill$2,181 $1,364 $628 $4,173 
Accumulated impairment(1,553)(754)(580)(2,887)
Balance at September 30, 2022$628 $610 $48 $1,286