Acquisition, Integration and Restructuring Expenses | Global Business Optimization Program (Details) - Global Business Optimization Program [Member] $ in Thousands	12 Months Ended
	Jan. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 42,541
Europe
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	29,000
Americas
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	12,100
Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,400
Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	70,000
Minimum | Europe
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	40,000
Minimum | Americas
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	30,000
Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	80,000
Maximum | Europe
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	45,000
Maximum | Americas
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	35,000
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	26,427
Professional Services [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 16,114