Goodwill & Other Intangible Assets Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
		Feb. 22, 2019		Feb. 23, 2018	Feb. 24, 2017
Goodwill [Line Items]
Goodwill, Acquired During Period	[1]	$ 103.0	[2]	$ 31.2
Goodwill [Roll Forward]
Goodwill		502.9
Accumulated impairment losses		364.7		364.7
Currency translation adjustments		(0.4)		0.3
Goodwill		605.5		502.9
Goodwill, net		240.8		138.2	$ 106.7
Asia Pacific Reporting Unit [Member] [Domain]
Goodwill [Roll Forward]
Goodwill, net					0.0
Americas [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	[1]	84.2	[2]	31.2
Goodwill [Roll Forward]
Goodwill		121.4
Accumulated impairment losses		1.7		1.7
Currency translation adjustments		(0.3)		0.3
Goodwill		205.3		121.4
Goodwill, net		203.6		119.7	88.2
EMEA [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period		18.8	[2]	0.0
Goodwill [Roll Forward]
Goodwill		265.0
Accumulated impairment losses		265.0		265.0
Currency translation adjustments		(0.1)		0.0
Goodwill		283.7		265.0
Goodwill, net		18.7		0.0	0.0
Other category [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period		0.0		0.0
Intangible asset impairment charges		0.0		0.0
Goodwill [Roll Forward]
Goodwill		116.5
Accumulated impairment losses		98.0		98.0
Currency translation adjustments		0.0		0.0
Goodwill		116.5		116.5
Goodwill, net		$ 18.5		$ 18.5	$ 18.5

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

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