SEGMENT INFORMATION - Segment Assets (Details) (USD $)
In Millions, unless otherwise specified
Jan. 31, 2015
Oct. 31, 2014
Segment Reporting Information [Line Items]    
Assets $ 7,519 $ 10,831
Life Sciences and Applied Markets    
Segment Reporting Information [Line Items]    
Assets 2,407 2,209
Diagnostics and Genomics    
Segment Reporting Information [Line Items]    
Assets 2,893 2,887
Agilent CrossLab    
Segment Reporting Information [Line Items]    
Assets 1,065 1,031
Segment Total    
Segment Reporting Information [Line Items]    
Assets $ 6,365 $ 6,127