Reflects the effects of adjustments of previously recorded tax expense, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, IRS tax settlement and unusual repatriation of foreign earnings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 10A, 10B, 10C

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 10

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Name:	us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Subsequent Events (Details) (USD $) In Millions, unless otherwise specified		0 Months Ended			1 Months Ended
	Apr. 22, 2013 Subsequent Event Acquisition [Member] Layer 7 Technologies [Member]	May 09, 2013 Subsequent Event Re-balancing Plan [Member] Fiscal 2014 Plan [Member] Employee	May 09, 2013 Subsequent Event Re-balancing Plan [Member] Fiscal 2014 Plan [Member] Severance [Member]	May 09, 2013 Subsequent Event Re-balancing Plan [Member] Fiscal 2014 Plan [Member] Facilities Consolidation [Member]	May 07, 2013 Subsequent Event Tax Settlement [Member]	May 07, 2013 Subsequent Event Tax Settlement [Member] Minimum [Member]	May 07, 2013 Subsequent Event Tax Settlement [Member] Maximum [Member]
Subsequent Event [Line Items]
Purchase price	$ 155
Workforce re-balancing		1,200
Expected cost of re-balancing plan		150	120	30
Income tax benefit						165	185
Reduction of balance of unrecognized tax benefits					235
Cash tax refund						$ 70	$ 80