Revenue (Details) - USD ($) $ in Millions		3 Months Ended
		May 25, 2018	May 26, 2017	Feb. 23, 2018
Contract with Customer, Liability		$ 19.8		$ 28.2
Revenues		754.0	$ 735.1
Systems and storage [Member] | Americas [Member]
Revenues		258.0	264.5
Systems and storage [Member] | EMEA [Member]
Revenues		62.8	52.3
Systems and storage [Member] | Other category [Member]
Revenues		7.7	14.3
Seating [Member] | Americas [Member]
Revenues		157.9	152.7
Seating [Member] | EMEA [Member]
Revenues		44.2	37.3
Seating [Member] | Other category [Member]
Revenues		11.2	13.5
Other Product Category [Member] | Americas [Member]
Revenues	[1]	119.9	117.8
Other Product Category [Member] | EMEA [Member]
Revenues	[1]	30.4	23.5
Other Product Category [Member] | Other category [Member]
Revenues	[1]	61.9	59.2
UNITED STATES
Revenues		471.3	467.0
Foreign locations [Member]
Revenues		282.7	$ 268.1
Deposits [Member]
contract with customer, increases in liability due to deposits received		12.5
Revenue from Contract with Customer [Member]
Contract with Customer, Liability, Revenue Recognized		$ (20.9)

[1] The Other product category data by segment consists primarily of consolidated dealers, textiles and surface materials, worktools, architecture, technology, other uncategorized product lines and services.