Property and Equipment, net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Millions	Sep. 29, 2018	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Leasehold improvements	$ 551.9	$ 551.0
Computer equipment and software	270.4	266.3
Furniture and fixtures	269.4	270.9
In-store shops	268.0	273.9
Equipment	120.0	116.7
Building	50.2	51.6
Land	15.3	16.2
Property and equipment, gross	1,545.2	1,546.6
Less: accumulated depreciation and amortization	(1,042.3)	(1,001.6)
Property and equipment, net (excluding construction-in-progress)	502.9	545.0
Construction-in-progress	49.1	38.2
Property and equipment, net	$ 552.0	$ 583.2

Capitalized Computer Hardware And Software

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In Store Shops Gross

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Property Plant And Equipment Excluding Construction In Progress

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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 depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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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 additions or improvements to assets held under a lease arrangement.

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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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