XML 20 R29.htm IDEA: XBRL DOCUMENT v2.4.0.8
Business Segment - Summary of Operating Results by Segment (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Revenue:    
Total Revenue $ 1,077 $ 1,072
Operating Profit:    
Total Operating Profit 62 58
Operating Profit %:    
Total Operating Profit % 5.80% 5.40%
United States (Member)
    
Revenue:    
Total Revenue 704 712
Operating Profit:    
Total Operating Profit 30 33
Operating Profit %:    
Total Operating Profit % 4.30% 4.60%
Canada (Member)
    
Revenue:    
Total Revenue 191 215
Operating Profit:    
Total Operating Profit 16 17
Operating Profit %:    
Total Operating Profit % 8.40% 7.90%
International [Member]
    
Revenue:    
Total Revenue 182 145
Operating Profit:    
Total Operating Profit $ 16 $ 8
Operating Profit %:    
Total Operating Profit % 8.80% 5.50%