Equity derivative notional amount to hedge future deferred compensation obligations

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- Definition

Foreign Currency Cash Flow Hedge Maturity Period Maximum

+ Details

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- Definition

The estimated net amount of existing gains (losses) on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(2)

+ Details

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- Definition

Fair value of a derivative asset (or nonderivative instrument) that is designated and qualifies as a hedging instrument, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 205G

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44C
-Subparagraph a
-Clause 1

+ Details

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- Definition

Aggregate impact of foreign currency derivatives on earnings for the period. Includes impact of foreign currency cash flow hedge ineffectiveness and the ineffectiveness of fair value hedging derivatives and full change in fair value of the foreign currency derivatives not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45

+ Details

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- Definition

Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments.

+ Details

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- Definition

Current period adjustment in other comprehensive income reflecting gains (losses) on foreign currency transactions that are designated as, and are effective as, hedges of a net investment in a foreign entity, net of tax effect.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44C
-Subparagraph b(2)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 20
-Subparagraph a

+ Details

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Derivative Instruments (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended					9 Months Ended	12 Months Ended
Derivative Instruments (Narrative) (Details) (USD $)	May 01, 2010	Apr. 30, 2011	May 01, 2010	Jul. 31, 2010	Apr. 30, 2011 Other Assets [Member] Interest Rate Derivatives [Member]	Jul. 31, 2010 Other Assets [Member] Interest Rate Derivatives [Member]	Apr. 30, 2011 Equity Derivatives [Member]	Jul. 31, 2010 Equity Derivatives [Member]
Net derivative gains to be reclassified from AOCI into earnings in next twelve months		$ 76,000,000
Foreign currency cash flow hedges maturity period, maximum, months		18
Recognized net losses	14,000,000		10,000,000
Loss in net investments in foreign subsidiaries							9,000,000
Interest rate derivatives designated as cash flow hedge long-term debt	3,700,000,000		3,700,000,000
Notional amount of interest rate derivatives		2,750,000,000		1,500,000,000
Derivative assets, designated		175,000,000		154,000,000	75,000,000	72,000,000
Foreign currency hedging amounts							$ 260,000,000	$ 169,000,000