Cost Reduction Programs and Other Charges - Schedule of Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	$ 131	$ 89
Severance costs
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges		$ 33
Merger-related and other charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	53
Operating Segments | Americas
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	21
Operating Segments | Americas | Merger-related and other charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	0
Operating Segments | EMEA
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	29
Operating Segments | EMEA | Merger-related and other charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	3
Operating Segments | APAC
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	12
Operating Segments | APAC | Merger-related and other charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	8
Operating Segments | Engineering
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	15
Operating Segments | Engineering | Merger-related and other charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	1
Operating Segments | Other
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	54
Operating Segments | Other | Merger-related and other charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	41
Cost Reduction Program
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	78
Cost Reduction Program | Severance costs
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	58
Cost Reduction Program | Other cost reduction charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	20
Cost Reduction Program | Operating Segments | Americas
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	21
Cost Reduction Program | Operating Segments | Americas | Severance costs
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	6
Cost Reduction Program | Operating Segments | Americas | Other cost reduction charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	15
Cost Reduction Program | Operating Segments | EMEA
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	26
Cost Reduction Program | Operating Segments | EMEA | Severance costs
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	26
Cost Reduction Program | Operating Segments | EMEA | Other cost reduction charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	0
Cost Reduction Program | Operating Segments | APAC
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	4
Cost Reduction Program | Operating Segments | APAC | Severance costs
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	2
Cost Reduction Program | Operating Segments | APAC | Other cost reduction charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	2
Cost Reduction Program | Operating Segments | Engineering
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	14
Cost Reduction Program | Operating Segments | Engineering | Severance costs
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	14
Cost Reduction Program | Operating Segments | Engineering | Other cost reduction charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	0
Cost Reduction Program | Operating Segments | Other
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	13
Cost Reduction Program | Operating Segments | Other | Severance costs
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	10
Cost Reduction Program | Operating Segments | Other | Other cost reduction charges
Restructuring Cost and Reserve [Line Items]
Cost reduction programs and other charges	$ 3