Income Taxes (Income Tax Reconciliation) (Details)	12 Months Ended
	Feb. 25, 2023	Feb. 26, 2022	Feb. 27, 2021
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	3.50%	16.40%	(2.50%)
Foreign tax rate differential	(0.20%)	(15.40%)	(3.40%)
Nondeductible goodwill impairment expense	0.00%	0.00%	5.60%
Valuation allowance	(4.70%)	63.20%	11.40%
Nontaxable gain (loss) on life insurance policies	(0.20%)	(1.20%)	1.80%
Deduction for foreign derived intangible income	(0.20%)	(2.60%)	(0.80%)
Research & development tax credit	(1.50%)	(9.40%)	(5.30%)
§162(m) Executive Compensation Limitation	0.80%	3.50%	3.60%
Tax benefit of share based awards	(0.80%)	(5.20%)	0.20%
Worthless stock deduction	(6.00%)	0.00%	0.00%
Other, net	(1.40%)	2.20%	3.70%
Consolidated effective income tax rate	10.70%	74.90%	31.70%