Deferred Revenue And Financing Receivables (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
Jul. 02, 2011	Jul. 02, 2011	Jul. 03, 2010	Sep. 30, 2010
Maximum payment terms on software purchases for credit-worthy customers (in months)		36
Amounts due from customers for contracts with extended payment terms	$ 56.2	$ 56.2		$ 44.3
Sale of finance receivable	4.0	4.0	19.6
Reserve for credit losses	0	0		0
Uncollectible financing receivables written off	0	0		0
Accounts Receivable [Member]
Current receivables from contracts	46.2	46.2		27.2
Other Assets [Member]
Billed but uncollected maintenance receivable	83.4	83.4		76.8
Long-term receivables from contracts	$ 10.0	$ 10.0		$ 17.1

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Amount due from customers, clients, or other third-parties, or arising from transactions not separately disclosed, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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- Definition

Charge to expense for financing receivables that are expected to be uncollectible.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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Reduction to the allowance for credit losses related to financing receivables deemed uncollectible.

+ References

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- Definition

An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) within one year of the balance sheet date or the normal operating cycle, whichever is longer. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section A
-Paragraph 4
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) more than one year from the balance sheet date. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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For an unclassified balance sheet, an amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money at a future date(s). Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

+ References

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- Definition

The cash inflow associated with the sale of receivables arising from the financing of goods and services.

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