Restructuring Charges - By Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 56	$ 28	$ 142	$ 216
Operating Segments | North America
Restructuring Cost and Reserve [Line Items]
Restructuring costs			0
Operating Segments | EMEA
Restructuring Cost and Reserve [Line Items]
Restructuring costs			132
Operating Segments | Latin America
Restructuring Cost and Reserve [Line Items]
Restructuring costs			7
Operating Segments | Asia
Restructuring Cost and Reserve [Line Items]
Restructuring costs			3
Corporate / Other
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 0