CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) (USD $) In Thousands, except Share data, unless otherwise specified	Series G preferred stock	Series H preferred stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Total
BALANCE at Mar. 03, 2012	$ 1	$ 171,569	$ 898,687	$ 4,278,988	$ (7,883,367)	$ (52,634)	$ (2,586,756)
BALANCE (in shares) at Mar. 03, 2012		1,715,000	898,687,000
Increase (Decrease) in Stockholders' Deficit
Net income					118,105		118,105
Other comprehensive income (loss):
Changes in Defined Benefit Plans, net of $6,042 tax benefit at February 28, 2015						(8,735)	(8,735)
Comprehensive income							109,370
Exchange of restricted shares for taxes			(1,060)	(348)			(1,408)
Exchange of restricted shares for taxes (in shares)			(1,060,000)
Issuance of restricted stock			5,450	(5,450)
Issuance of restricted stock (in shares)			5,450,000
Cancellation of restricted stock			(360)	360
Cancellation of restricted stock (in shares)			(360,000)
Amortization of restricted stock balance				6,126			6,126
Stock-based compensation expense				11,588			11,588
Stock options exercised			1,551	95			1,646
Stock options exercised (in shares)			1,551,000
Dividends on preferred stock		10,528		(10,528)
Dividends on preferred stock (in shares)		106,000
BALANCE at Mar. 02, 2013	1	182,097	904,268	4,280,831	(7,765,262)	(61,369)	(2,459,434)
BALANCE (in shares) at Mar. 02, 2013		1,821,000	904,268,000
Increase (Decrease) in Stockholders' Deficit
Net income					249,414		249,414
Other comprehensive income (loss):
Changes in Defined Benefit Plans, net of $6,042 tax benefit at February 28, 2015						24,035	24,035
Comprehensive income							273,449
Exchange of restricted shares for taxes			(1,341)	(2,452)			(3,793)
Exchange of restricted shares for taxes (in shares)			(1,341,000)
Issuance of restricted stock			2,743	(2,743)
Issuance of restricted stock (in shares)			2,743,000
Cancellation of restricted stock			(1,212)	1,212
Cancellation of restricted stock (in shares)			(1,212,000)
Amortization of restricted stock balance				6,146			6,146
Stock-based compensation expense				10,048			10,048
Tax benefit from exercise of stock options and restricted stock vesting				26,665			26,665
Stock options exercised			26,873	6,344			33,217
Stock options exercised (in shares)			26,873,000
Dividends on preferred stock		8,318		(8,318)
Dividends on preferred stock (in shares)		83,000
Conversion of Series G and Series H preferred stock	(1)	(190,415)	40,000	150,416
Conversion of Series G and Series H preferred stock (in shares)		(1,904,000)	40,000,000
BALANCE at Mar. 01, 2014			971,331	4,468,149	(7,515,848)	(37,334)	(2,113,702)
BALANCE (in shares) at Mar. 01, 2014			971,331,000
Increase (Decrease) in Stockholders' Deficit
Net income					2,109,173		2,109,173
Other comprehensive income (loss):
Changes in Defined Benefit Plans, net of $6,042 tax benefit at February 28, 2015						(8,516)	(8,516)
Comprehensive income							2,100,657
Exchange of restricted shares for taxes			(2,115)	(13,063)			(15,178)
Exchange of restricted shares for taxes (in shares)			(2,115,000)
Issuance of restricted stock			3,303	(3,303)
Issuance of restricted stock (in shares)			3,303,000
Cancellation of restricted stock			(454)	454
Cancellation of restricted stock (in shares)			(454,000)
Amortization of restricted stock balance				12,441			12,441
Stock-based compensation expense				10,949			10,949
Tax benefit from exercise of stock options and restricted stock vesting				37,772			37,772
Stock options exercised			16,485	7,612			24,097
Stock options exercised (in shares)			16,485,000
Conversion of convertible debt instruments			8	12			20
Conversion of convertible debt instruments (in shares)			8,000
BALANCE at Feb. 28, 2015			$ 988,558	$ 4,521,023	$ (5,406,675)	$ (45,850)	$ 57,056
BALANCE (in shares) at Feb. 28, 2015			988,558,000