Reserves for Closed Properties - Changes in Company's Reserves (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
Nov. 30, 2013
Restructuring And Related Activities [Abstract]
Reserves for closed properties at beginning of the fiscal year	$ 61
Additions	4
Payments	(13)
Adjustments	1
Reserves for closed properties at the end of period	$ 53

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

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