v2.4.0.6
PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 3) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Pensions
     
Change in benefit obligations      
Beginning of year balance $ (10,925) $ (10,197)  
Service cost (220) (197) (176)
Interest cost (465) (492) (510)
Actuarial gains (losses) (947) (656)  
Amendments (5) (9)  
Benefits paid 656 648  
Settlements/curtailments 10 1  
Foreign exchange and other 62 (23)  
End of year balance (11,834) (10,925) (10,197)
Change in plan assets (fair value)      
Beginning of year balance 9,552 9,504  
Actual return on plan assets 736 600  
Employer contribution 441 79  
Benefits paid (656) (648)  
Settlements (10) (1)  
Foreign exchange and other (46) 18  
End of year balance 10,017 9,552 9,504
Funded status (1,817) (1,373)  
Weighted-average assumptions      
Discount rates (as a percent) 3.80% 4.40%  
Rate of compensation increase (as a percent) 3.90% 3.90%  
Health Care and Life Insurance
     
Change in benefit obligations      
Beginning of year balance (6,652) (6,467)  
Service cost (49) (44) (44)
Interest cost (281) (326) (337)
Actuarial gains (losses) (347) (113)  
Amendments (2)    
Benefits paid 333 340  
Health care subsidy receipts (15) (14)  
Foreign exchange and other (10) (28)  
End of year balance (7,023) (6,652) (6,467)
Change in plan assets (fair value)      
Beginning of year balance 1,459 1,637  
Actual return on plan assets 113 95  
Employer contribution 37 43  
Benefits paid (333) (340)  
Foreign exchange and other 11 24  
End of year balance 1,287 1,459 1,637
Funded status $ (5,736) $ (5,193)  
Weighted-average assumptions      
Discount rates (as a percent) 3.80% 4.40%