Goodwill & Other Intangible Assets Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
		Feb. 28, 2020		Feb. 22, 2019	Feb. 23, 2018
Goodwill [Line Items]
Goodwill, Acquired During Period	[2]	$ 1.0	[1]	$ 103.0
Goodwill, Written off Related to Sale of Business Unit		(68.6)
Goodwill, Other Increase (Decrease)		60.8
Goodwill [Roll Forward]
Goodwill		605.5
Accumulated impairment losses		303.9		364.7
Currency translation adjustments		(0.4)		(0.4)
Goodwill		537.5		605.5
Goodwill, net		233.6		240.8	$ 138.2
Asia Pacific Reporting Unit [Member] [Domain]
Goodwill [Roll Forward]
Goodwill, net					$ 0.0
Americas [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	[2]	1.0	[1]	84.2
Goodwill, Written off Related to Sale of Business Unit		0.0
Goodwill, Other Increase (Decrease)		0.0
Goodwill [Roll Forward]
Goodwill		205.3
Accumulated impairment losses		1.7		1.7
Currency translation adjustments		(0.2)		(0.3)
Goodwill		206.1		205.3
Goodwill, net		204.4		203.6
EMEA [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period		0.0	[1]	18.8
Goodwill, Written off Related to Sale of Business Unit		0.0
Goodwill, Other Increase (Decrease)		0.0
Goodwill [Roll Forward]
Goodwill		283.7
Accumulated impairment losses		265.0		265.0
Currency translation adjustments		(0.2)		(0.1)
Goodwill		283.5		283.7
Goodwill, net		18.5		18.7
Other category [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period		0.0		0.0
Goodwill, Written off Related to Sale of Business Unit		(68.6)
Goodwill, Other Increase (Decrease)		60.8
Intangible asset impairment charges		0.0		0.0
Goodwill [Roll Forward]
Goodwill		116.5
Accumulated impairment losses		(37.2)		98.0
Currency translation adjustments		0.0		0.0
Goodwill		47.9		116.5
Goodwill, net		$ 10.7		$ 18.5

[1] In 2019, we acquired Smith System Manufacturing Company ("Smith System"), resulting in a goodwill addition in the Americas segment. We also acquired Orangebox Group Limited ("Orangebox"), resulting in goodwill additions in the Americas and EMEA segments. See Note 20 for additional information.

[2] (1) In 2018, we acquired AMQ Solutions and certain assets of Tricom Vision Limited (collectively, "AMQ") resulting in a goodwill addition in the Americas segment. The purchase accounting was finalized in 2019. See Note 20 for additional information.