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Restructuring Charges - Schedule of Restructuring Related Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			$ 25
Charges Incurred	$ 0	$ 11	53	$ 28
Payments			(34)
Foreign Exchange and Other			(2)
Reserve, ending balance	42		42
Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			25
Charges Incurred			46
Payments			(34)
Foreign Exchange and Other			0
Reserve, ending balance	37		37
Facilities
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			0
Charges Incurred			7
Payments			0
Foreign Exchange and Other			(2)
Reserve, ending balance	5		5
Operating Segments \| Transportation \| Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			12
Charges Incurred			17
Payments			(16)
Foreign Exchange and Other			0
Reserve, ending balance	13		13
Operating Segments \| Transportation \| Facilities
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 \| Logistics \| Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			11
Charges Incurred			20
Payments			(10)
Foreign Exchange and Other			1
Reserve, ending balance	22		22
Operating Segments \| Logistics \| Facilities
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			0
Charges Incurred			1
Payments			0
Foreign Exchange and Other			(1)
Reserve, ending balance	0		0
Corporate \| Severance
Restructuring Reserve [Roll Forward]
Reserve, beginning balance			2
Charges Incurred			9
Payments			(8)
Foreign Exchange and Other			(1)
Reserve, ending balance	$ 2		$ 2