Quarterly report pursuant to Section 13 or 15(d)

Summary of Intangible Assets (Detail)

v3.7.0.1
Summary of Intangible Assets (Detail) - USD ($)
$ in Millions
Jun. 30, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 4,368 $ 4,183
Accumulated Amortization (2,539) (2,425)
Net Carrying Value 1,829 1,758
Capitalized software    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 3,100 2,933
Accumulated Amortization (2,229) (2,157)
Net Carrying Value 871 776
Licenses    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 126 131
Accumulated Amortization (63) (70)
Net Carrying Value 63 61
Franchise rights    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 128 128
Accumulated Amortization (93) (90)
Net Carrying Value 35 38
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 744 724
Accumulated Amortization (123) (85)
Net Carrying Value 621 639
Trade name    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 200 200
Accumulated Amortization 0 0
Net Carrying Value 200 200
Trademarks, patents, and other    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 70 67
Accumulated Amortization (31) (23)
Net Carrying Value 39 $ 44
Licenses    
Finite-Lived Intangible Assets [Line Items]    
Carrying value 4  
Trade name    
Finite-Lived Intangible Assets [Line Items]    
Carrying value $ 200