Quarterly report pursuant to Section 13 or 15(d)

Summary of Intangible Assets (Detail)

v2.4.0.8
Summary of Intangible Assets (Detail) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 2,778 $ 2,608
Accumulated Amortization (2,100) (2,005)
Net Carrying Value 678 603
Trademarks, licenses, patents, and other
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 200 163
Accumulated Amortization (89) (80)
Net Carrying Value 111 83
Customer lists
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 130 131
Accumulated Amortization (84) (79)
Net Carrying Value 46 52
Franchise rights
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 117 117
Accumulated Amortization (67) (64)
Net Carrying Value 50 53
Capitalized software
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 2,331 2,197
Accumulated Amortization (1,860) (1,782)
Net Carrying Value $ 471 $ 415