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Restructuring Charges - Schedule of Restructuring Related Activity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			$ 25
Charges Incurred	$ 50	$ 4	53	$ 17
Payments			(22)
Foreign Exchange and Other			(1)
Reserve, ending balance	55		55
Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			25
Charges Incurred			47
Payments			(22)
Foreign Exchange and Other			0
Reserve, ending balance	50		50
Transportation
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			0
Charges Incurred			6
Payments			0
Foreign Exchange and Other			(1)
Reserve, ending balance	5		5
Operating Segments \| Transportation \| Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			12
Charges Incurred			18
Payments			(11)
Foreign Exchange and Other			(1)
Reserve, ending balance	18		18
Operating Segments \| Logistics \| Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			11
Charges Incurred			21
Payments			(7)
Foreign Exchange and Other			1
Reserve, ending balance	26		26
Corporate \| Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			2
Charges Incurred			8
Payments			(4)
Foreign Exchange and Other			0
Reserve, ending balance	$ 6		$ 6