BENEFIT PLANS - Benefit Obligation, Fair Value of Plan Assets and Funded Status of Defined Benefit Pension Plans and Other Postretirement Benefit Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Feb. 27, 2016	Feb. 28, 2015	Feb. 22, 2014
Changes in Plan Assets
Fair value of plan assets at beginning of year	$ 2,317
Employer contributions	43	$ 39	$ 39
Fair value of plan assets at end of year	2,119	2,317
Pension Benefits
Changes in Benefit Obligation
Benefit obligation at beginning of year	2,849	2,726
Plan amendment	0	0
Service cost	0	0	0
Interest cost	106	121	121
Actuarial (gain) loss	(175)	371
Settlements paid	(1)	(272)
Benefits paid	(115)	(97)
Benefit obligation at end of year	2,664	2,849	2,726
Changes in Plan Assets
Fair value of plan assets at beginning of year	2,317	2,261
Actual return on plan assets	(109)	260
Employer contributions	27	165
Plan participants’ contributions	0	0
Settlements paid	(1)	(272)
Benefits paid	(115)	(97)
Other	0	0
Fair value of plan assets at end of year	2,119	2,317	2,261
Unfunded status at end of year	(545)	(532)
Other Postretirement Benefits
Changes in Benefit Obligation
Benefit obligation at beginning of year	82	81
Plan amendment	(21)	(5)
Service cost	0	1	2
Interest cost	3	4	4
Actuarial (gain) loss	(6)	5
Settlements paid	0	0
Benefits paid	(4)	(4)
Benefit obligation at end of year	54	82	81
Changes in Plan Assets
Fair value of plan assets at beginning of year	4	0
Actual return on plan assets	0	0
Employer contributions	15	4
Plan participants’ contributions	2	3
Settlements paid	0	0
Benefits paid	(6)	(7)
Other	0	4
Fair value of plan assets at end of year	15	4	$ 0
Unfunded status at end of year	$ (39)	$ (78)