Accumulated Other Comprehensive Income (Loss) Reclassifications out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	May 24, 2019	May 25, 2018	Feb. 22, 2019	Feb. 23, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (55.1)	$ (23.2)	$ (47.3)	$ (10.3)
Other comprehensive income (loss) before reclassifications	(7.5)
Cost of sales	565.9	516.1
Income Tax Expense (Benefit)	6.3	6.2
Amounts reclassified from accumulated other comprehensive income (loss)	(0.3)
Net income	17.8	17.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(7.8)	(12.9)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	0.3	1.2
Unrealized gain (loss) on investments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	0.1		0.0
Other comprehensive income (loss) before reclassifications	0.1
Amounts reclassified from accumulated other comprehensive income (loss)	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0.1
Pension and other post-retirement liability adjustments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	9.5		9.7
Other comprehensive income (loss) before reclassifications	0.3
Amounts reclassified from accumulated other comprehensive income (loss)	(0.5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(0.2)
Pension and other post-retirement liability adjustments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense (Benefit)	0.2	0.3
Amounts reclassified from accumulated other comprehensive income (loss)	0.5	1.2
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(9.4)		(9.6)
Other comprehensive income (loss) before reclassifications	0.0
Amounts reclassified from accumulated other comprehensive income (loss)	0.2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0.2
Foreign currency translation adjustments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(55.3)		$ (47.4)
Other comprehensive income (loss) before reclassifications	(7.9)
Amounts reclassified from accumulated other comprehensive income (loss)	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(7.9)
Actuarial losses (gains) [Member] | Pension and other post-retirement liability adjustments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Income	(0.7)	(0.9)
Prior service cost (credit) [Member] | Pension and other post-retirement liability adjustments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Income	0.0	(0.6)
Reclassification out of accumulated Other Comprehensive Income due to Defined Benefit Plan Settlements [Member] | Foreign Currency [Domain] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Income		0.0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Currency [Domain] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss)	(0.2)	0.0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Reclassification out of accumulated Other Comprehensive Income due to Defined Benefit Plan Settlements [Member] | Foreign Currency [Domain] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Income	0.3
Income Tax Expense (Benefit)	$ (0.1)	$ 0.0