Income Taxes (Income Tax Reconciliation) (Details)	12 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	21.00%	21.00%	21.00%
State and local income taxes, net of federal tax benefit	16.40%	(2.50%)	1.80%
Foreign tax rate differential	(15.40%)	(3.40%)	(1.30%)
Nondeductible goodwill impairment expense	0.00%	5.60%	0.00%
Valuation allowance	63.20%	11.40%	2.20%
Nontaxable gain (loss) on life insurance policies	(1.20%)	1.80%	0.40%
Deduction for foreign derived intangible income	(2.60%)	(0.80%)	(0.30%)
Research & development tax credit	(9.40%)	(5.30%)	(1.60%)
§162(m) Executive Compensation Limitation	3.50%	3.60%	0.30%
Tax benefit of share based awards	(5.20%)	0.20%	0.20%
Other, net	2.20%	3.70%	0.50%
Consolidated effective income tax rate	74.90%	31.70%	22.40%