Revision of Previously Issued Consolidated Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 04, 2023	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020
Revision of Previously Issued Consolidated Financial Statements
Accrued salaries, wages and other current liabilities	$ 709,891	$ 776,559	$ 643,218
Total current liabilities	2,713,237	2,929,015	2,603,800
Other noncurrent liabilities	97,577	139,254	206,670
Total liabilities	8,121,595	8,413,175	8,719,561
Accumulated deficit	(6,553,974)	(5,834,786)	(5,312,414)
Total stockholders' (deficit) equity	(594,233)	115,828	615,843	$ 674,527
Facility exit and impairment charges	180,637	164,084	57,714
Loss from continuing operations before income taxes	(725,655)	(526,152)	(119,538)
Net loss from continuing operations	(719,188)	(522,372)	(99,381)
Net loss	(719,188)	(522,372)	(90,220)
Comprehensive loss	$ (718,603)	$ (513,755)	$ (65,376)
Basic loss per share from continuing operations	$ (13.15)	$ (9.66)	$ (1.86)
Diluted loss per share from continuing operations	(13.15)	(9.66)	(1.86)
Net basic loss per share	(13.15)	(9.66)	(1.68)
Net diluted loss per share	$ (13.15)	$ (9.66)	$ (1.68)
As Previously Reported
Revision of Previously Issued Consolidated Financial Statements
Accrued salaries, wages and other current liabilities	$ 724,529	$ 780,632	$ 642,364
Total current liabilities	2,727,875	2,933,088	2,602,946
Other noncurrent liabilities	130,482	151,976	208,213
Total liabilities	8,169,138	8,429,970	8,720,250
Accumulated deficit	(6,601,517)	(5,851,581)	(5,313,103)
Total stockholders' (deficit) equity	(641,776)	99,033	615,154
Facility exit and impairment charges	211,385	180,190	58,403
Loss from continuing operations before income taxes	(756,403)	(542,258)	(120,227)
Net loss from continuing operations	(749,936)	(538,478)	(100,070)
Net loss	(749,936)	(538,478)	(90,909)
Comprehensive loss	$ (749,351)	$ (529,861)	$ (66,065)
Basic loss per share from continuing operations	$ (13.71)	$ (9.96)	$ (1.87)
Net basic loss per share	$ (13.71)	$ (9.96)	$ (1.69)
Adjustment
Revision of Previously Issued Consolidated Financial Statements
Accrued salaries, wages and other current liabilities	$ (14,638)	$ (4,073)	$ 854
Total current liabilities	(14,638)	(4,073)	854
Other noncurrent liabilities	(32,905)	(12,722)	(1,543)
Total liabilities	(47,543)	(16,795)	(689)
Accumulated deficit	(47,543)	16,795	689
Total stockholders' (deficit) equity	(47,543)	16,795	689
Facility exit and impairment charges	(30,748)	(16,106)	(689)
Loss from continuing operations before income taxes	30,748	16,106	689
Net loss from continuing operations	30,748	16,106	689
Net loss	30,748	16,106	689
Comprehensive loss	$ 30,748	$ 16,106	$ 689
Basic loss per share from continuing operations	$ 0.56	$ 0.30	$ 0.01
Net basic loss per share	$ 0.56	$ 0.30	$ 0.01