CONSOLIDATED BALANCE SHEETS PARENTHETICAL (USD $) In Millions, except Per Share data	May 31, 2011	May 31, 2010
Allowance for doubtful accounts receivable	$ 372	$ 305
Preferred stock par or stated value per share	$ 0.01	$ 0.01
Preferred stock shares authorized	1	1
Preferred stock shares outstanding	0	0
Common stock par or stated value per share	$ 0.01	$ 0.01
Common stock shares authorized	11,000	11,000
Common stock shares outstanding	5,068	5,026

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

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Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Excludes common shares repurchased by the entity and held as Treasury shares. Shares outstanding equals shares issued minus shares held in treasury. Does not include common shares that have been repurchased.

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Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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