XML 49 R23.htm IDEA: XBRL DOCUMENT v2.4.0.8
Research and Development (Tables)
 9 Months Ended
Sep. 30, 2013
Research and Development [Abstract]  
Gross and net expenditures on research and development ("R&D") activities
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
(millions of dollars)
2013
 
2012
 
2013
 
2012
Gross R&D expenditures
$
84.7

 
$
75.6

 
$
250.9

 
$
228.5

Customer reimbursements
(12.9
)
 
(11.2
)
 
(34.7
)
 
(29.8
)
Net R&D expenditures
$
71.8

 
$
64.4

 
$
216.2

 
$
198.7