Condensed Consolidated Balance Sheet (Unaudited) (USD $)
In Millions
 6 Months Ended 12 Months Ended
Apr. 30, 2011
Oct. 31, 2010
Current assets:    
Cash and cash equivalents $ 2,975 $ 2,649
Short-term restricted cash and cash equivalents 0 1,550
Accounts receivable, net 918 869
Inventory 853 716
Other current assets 350 385
Total current assets 5,096 6,169
Property, plant and equipment, net 1,004 980
Goodwill 1,555 1,456
Other intangible assets, net 493 494
Long-term investments 123 142
Other assets 378 455
Total assets 8,649 9,696
Current liabilities:    
Accounts payable 486 499
Employee compensation and benefits 419 395
Deferred revenue 429 358
Short-term debt 0 1,501
Other accrued liabilities 258 330
Total current liabilities 1,592 3,083
Long-term debt 2,144 2,190
Retirement and post-retirement benefits 233 477
Other long-term liabilities 719 710
Total liabilities 4,688 6,460
Contingencies (Note 13)    
Stockholders' equity:    
Preferred stock; $0.01 par value; 125 million shares authorized; none issued and outstanding 0 0
Common stock; $0.01 par value; 2 billion shares authorized; 587 million shares at April 30, 2011 and 579 million shares at October 31, 2010, issued 6 6
Treasury stock at cost; 239 million shares at April 30, 2011 and 233 million shares at October 31, 2010 (8,308) (8,038)
Additional paid-in-capital 8,140 7,904
Retained earnings 3,837 3,444
Accumulated other comprehensive income (loss) 278 (88)
Total stockholder's equity 3,953 3,228
Non-controlling interest 8 8
Total equity 3,961 3,236
Total liabilities and equity $ 8,649 $ 9,696