Interim Financial Results (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended								12 Months Ended
	Feb. 28, 2018	Mar. 02, 2019	Dec. 01, 2018	Sep. 01, 2018	Jun. 02, 2018	Mar. 03, 2018	Dec. 02, 2017	Sep. 02, 2017	Jun. 03, 2017	Mar. 02, 2019	Mar. 03, 2018	Mar. 04, 2017
Interim Financial Results (Unaudited)
Revenues		$ 5,379,645	$ 5,450,060	$ 5,421,362	$ 5,388,490	$ 5,394,264	$ 5,353,170	$ 5,345,011	$ 5,436,523	$ 21,639,557	$ 21,528,968	$ 22,927,540
Cost of revenues		4,215,281	4,267,972	4,260,211	4,219,741	4,124,498	4,166,447	4,183,338	4,274,580	16,963,205	16,748,863	17,862,833
Selling, general and administrative expenses		1,143,202	1,142,555	1,153,991	1,152,627	1,181,964	1,166,514	1,141,844	1,160,940	4,592,375	4,651,262	4,776,995
Lease termination and impairment charges		55,898	2,628	39,609	9,859	47,675	3,939	3,113	4,038	107,994	58,765	45,778
Goodwill and intangible asset impairment charges				375,190						375,190	261,727
Goodwill impairment						261,727				312,984	261,727	0
Interest expense		52,695	56,008	56,233	62,792	50,603	50,308	50,857	51,000	227,728	202,768	200,065
Loss on debt retirements, net	$ 8,180				554					554
Walgreens Boots Alliance merger termination fee								(325,000)			(325,000)
Loss (gain) on sale of assets, net		(26,806)	(382)	(4,965)	(5,859)	(5,249)	205	(14,951)	(5,877)	(38,012)	(25,872)	(6,649)
Total costs and expenses		5,440,270	5,468,781	5,880,269	5,439,714	5,661,218	5,387,413	5,039,201	5,484,681	22,229,034	21,572,513	22,879,022
(Loss) income from continuing operations before income taxes		(60,625)	(18,721)	(458,907)	(51,224)	(266,954)	(34,243)	305,810	(48,158)	(589,477)	(43,545)	48,518
Income tax expense (benefit)		195,004	(1,471)	(106,559)	(9,497)	216,719	(16,061)	117,450	(12,121)	77,477	305,987	44,438
Net (loss) income from continuing operations		(255,629)	(17,250)	(352,348)	(41,727)	(483,673)	(18,182)	188,360	(36,037)	(666,954)	(349,532)	4,080
Net income (loss) from discontinued operations, net of tax		(17,350)	12,740	(6,792)	256,143	1,250,745	99,213	(17,644)	(39,312)	244,741	1,293,002	(27)
Net (loss) income		$ (272,979)	$ (4,510)	$ (359,140)	$ 214,416	$ 767,072	$ 81,031	$ 170,716	$ (75,349)	$ (422,213)	$ 943,470	$ 4,053
Basic (loss) income per share:
Continuing operations						$ (9.18)	$ (0.35)	$ 3.59	$ (0.69)	$ (12.62)	$ (6.66)	$ 0.08
Discontinued operations						23.74	1.90	(0.33)	(0.75)	4.63	24.64	0.00
Net basic (loss) income per share						14.56	1.55	3.26	(1.44)	(7.99)	17.98	0.08
Diluted (loss) income per share:
Continuing operations						(9.18)	(0.35)	3.53	(0.69)	(12.62)	(6.66)	0.08
Discontinued operations						23.74	1.90	(0.33)	(0.75)	4.63	24.64	0.00
Net diluted (loss) income per share						$ 14.56	$ 1.55	$ 3.20	$ (1.44)	(7.99)	$ 17.98	$ 0.08
Basic and diluted (loss) income per share:
Continuing operations		$ (4.83)	$ (0.33)	$ (6.67)	$ (0.79)					(12.62)
Discontinued operations		(0.32)	0.24	(0.13)	4.86					4.63
Net basic and diluted income (loss) per share		$ (5.15)	$ (0.09)	$ (6.80)	$ 4.07					$ (7.99)
Income tax expense recorded in connection with revaluation of deferred tax assets		$ 212,252				$ 324,765					$ 324,765
Goodwill impairment, net of tax						191,000				$ 235,698	191,000
Facilities impairment charges		28,920				36,927
LIFO charge (credit)		$ 4,043				$ (49,220)				$ 23,354	$ (28,827)	$ (3,721)