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Accumulated Other Comprehensive Income (Loss)
 6 Months Ended
May 04, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss)
The components of accumulated other comprehensive loss at May 4, 2013 and November 3, 2012 consisted of the following, net of tax: 
 
May 4, 2013
 
November 3, 2012
Foreign currency translation adjustment
$
(1,154
)
 
$
982

Unrealized gains on available-for-sale securities
478

 
444

Unrealized losses on available-for-sale securities
(267
)
 
(423
)
Unrealized gains on derivative instruments
520

 
1,165

Pension plans
(66,609
)
 
(66,562
)
Total accumulated other comprehensive loss
$
(67,032
)
 
$
(64,394
)
The aggregate fair value of investments with unrealized losses as of May 4, 2013 and November 3, 2012 was $1,112.7 million and $1,214.1 million, respectively. These unrealized losses were primarily related to corporate obligations that earn lower interest rates than current market rates. None of these investments have been in a loss position for more than twelve months.
Unrealized gains and losses on available-for-sale securities classified as short-term investments at May 4, 2013 and November 3, 2012 are as follows:
 
May 4, 2013
 
November 3, 2012
Unrealized gains on securities classified as short-term investments
$
598

 
$
581

Unrealized losses on securities classified as short-term investments
(325
)
 
(519
)
Net unrealized gains on securities classified as short-term investments
$
273

 
$
62


Realized gains or losses on investments are determined based on the specific identification basis and are recognized in nonoperating (income) expense. Gross realized gains and losses on sales of available-for-sale investments during the three- and six-month periods ended May 5, 2012 were approximately $1.3 million and approximately $0.1 million, respectively. There were no material net realized gains or losses from the sales of available-for-sale investments during any other of the fiscal periods presented.