BENEFIT PLANS - Fair Value of Assets of Company's Benefit Plans Held in Master Trust (Detail) (USD $) In Millions, unless otherwise specified	Feb. 28, 2015	Feb. 22, 2014	Feb. 23, 2013
Changes in Plan Assets
Total plan assets at fair value	$ 2,317	$ 2,261
Common Stock
Changes in Plan Assets
Total plan assets at fair value	489	579
Common collective trusts—fixed income
Changes in Plan Assets
Total plan assets at fair value	259	253
Common collective trusts—equity
Changes in Plan Assets
Total plan assets at fair value	336	344
Government securities
Changes in Plan Assets
Total plan assets at fair value	225	181
Mutual funds
Changes in Plan Assets
Total plan assets at fair value	339	295
Corporate bonds
Changes in Plan Assets
Total plan assets at fair value	292	290
Real estate partnerships
Changes in Plan Assets
Total plan assets at fair value	162	149
Private equity
Changes in Plan Assets
Total plan assets at fair value	144	125
Mortgage-backed securities
Changes in Plan Assets
Total plan assets at fair value	17	37
Other
Changes in Plan Assets
Total plan assets at fair value	54	8
Level 1
Changes in Plan Assets
Total plan assets at fair value	685	723
Level 1 | Common Stock
Changes in Plan Assets
Total plan assets at fair value	489	579
Level 1 | Common collective trusts—fixed income
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 1 | Common collective trusts—equity
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 1 | Government securities
Changes in Plan Assets
Total plan assets at fair value	95	92
Level 1 | Mutual funds
Changes in Plan Assets
Total plan assets at fair value	53	52
Level 1 | Corporate bonds
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 1 | Real estate partnerships
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 1 | Private equity
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 1 | Mortgage-backed securities
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 1 | Other
Changes in Plan Assets
Total plan assets at fair value	48	0
Level 2
Changes in Plan Assets
Total plan assets at fair value	1,326	1,264
Level 2 | Common Stock
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 2 | Common collective trusts—fixed income
Changes in Plan Assets
Total plan assets at fair value	259	253
Level 2 | Common collective trusts—equity
Changes in Plan Assets
Total plan assets at fair value	336	344
Level 2 | Government securities
Changes in Plan Assets
Total plan assets at fair value	130	89
Level 2 | Mutual funds
Changes in Plan Assets
Total plan assets at fair value	286	243
Level 2 | Corporate bonds
Changes in Plan Assets
Total plan assets at fair value	292	290
Level 2 | Real estate partnerships
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 2 | Private equity
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 2 | Mortgage-backed securities
Changes in Plan Assets
Total plan assets at fair value	17	37
Level 2 | Other
Changes in Plan Assets
Total plan assets at fair value	6	8
Level 3
Changes in Plan Assets
Total plan assets at fair value	306	274
Level 3 | Common Stock
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 3 | Common collective trusts—fixed income
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 3 | Common collective trusts—equity
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 3 | Government securities
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 3 | Mutual funds
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 3 | Corporate bonds
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 3 | Real estate partnerships
Changes in Plan Assets
Total plan assets at fair value	162	149	136
Level 3 | Private equity
Changes in Plan Assets
Total plan assets at fair value	144	125	110
Level 3 | Mortgage-backed securities
Changes in Plan Assets
Total plan assets at fair value	0	0
Level 3 | Other
Changes in Plan Assets
Total plan assets at fair value	$ 0	$ 0