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Commitments and Contingencies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended 0 Months Ended 3 Months Ended 0 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2014
CareFusion Corporation [Member]
Oct. 05, 2014
CareFusion Corporation [Member]
Subsequent Event [Member]
Jul. 30, 2013
Hospital Plaintiffs [Member]
Sep. 19, 2013
RTI Technologies [Member]
Nov. 09, 2009
RTI Technologies [Member]
Sep. 30, 2013
RTI Technologies [Member]
Nov. 10, 2014
RTI Technologies [Member]
Subsequent Event [Member]
Loss Contingencies [Line Items]                    
Rental expense for operating leases $ 71 $ 70 $ 66              
Future minimum rental commitments on noncancelable leases due in 2015 51                  
Future minimum rental commitments on noncancelable leases due in 2016 43                  
Future minimum rental commitments on noncancelable leases due in 2017 34                  
Future minimum rental commitments on noncancelable leases due in 2018 23                  
Future minimum rental commitments on noncancelable leases due in 2019 21                  
Future minimum rental commitments on noncancelable leases Thereafter 20                  
Aggregate future purchase commitments 565                  
Settlement amount           22        
Damages awarded             113.5 5.0    
Pre-tax charge relating to an unfavorable litigation verdict                 341  
Percentage of reduction in total fee recovery                   50.00%
Fee award, requested amount                   $ 36
Acquisition agreement date       Oct. 05, 2014 Oct. 05, 2014