Property, Plant and Equipment - (Details) - USD ($) $ in Millions	Jan. 31, 2019	Jan. 31, 2018
Property, Plant and Equipment [Abstract]
Land	$ 41.8	$ 41.8
Buildings	122.6	123.0
Leasehold and building improvements	1,378.1	1,328.6
Office equipment	286.0	267.4
Software	452.2	353.2
Furniture and fixtures	315.0	311.6
Machinery and equipment	197.8	187.4
Construction-in-progress	98.7	105.1
Property, plant and equipment, gross	2,892.2	2,718.1
Accumulated depreciation and amortization	(1,865.5)	(1,727.6)
Property, plant and equipment, net	$ 1,026.7	$ 990.5

Building

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- Definition

Leasehold And Building Improvements

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Office Equipment

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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