Current Liabilities Other current liabilities (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2012	Jul. 31, 2011
Other Liabilities, Current [Abstract]
Reserve for product returns	$ 74	$ 20
Reserve for rebates	35	11
Current portion of license fee payable	10	10
Current portion of deferred rent	7	7
Interest payable	3	21
Executive deferred compensation plan liabilities	55	50
Other	34	22
Total other current liabilities	$ 218	$ 141

For a classified balance sheet, the cumulative difference as of the balance sheet date between the payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, within one year of the balance sheet date.

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Aggregate carrying amount, as of the balance sheet date, of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed in the balance sheet. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date.

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