Annual report pursuant to Section 13 and 15(d)

GOODWILL AND INTANGIBLE ASSETS - Summary of Intangible Assets (Detail)

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GOODWILL AND INTANGIBLE ASSETS - Summary of Intangible Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived $ 4,578  
Accumulated Amortization (2,614) $ (2,425)
Net Carrying Amount, Finite-lived $ 1,964  
Weighted- Average Amortization Period (in years) 7 years 10 months 24 days  
Gross Carrying Amount   4,183
Accumulated Amortization $ (2,614) (2,425)
Net Carrying Value 1,964 1,758
Trade Names    
Intangible Assets by Major Class [Line Items]    
Indefinite-lived intangible assets 200 200
Capitalized software    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 3,273 2,933
Accumulated Amortization (2,310) (2,157)
Net Carrying Amount, Finite-lived $ 963 776
Weighted- Average Amortization Period (in years) 6 years 10 months 24 days  
Accumulated Amortization $ (2,310) (2,157)
Customer relationships    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 776 724
Accumulated Amortization (160) (85)
Net Carrying Amount, Finite-lived $ 616 639
Weighted- Average Amortization Period (in years) 10 years 9 months 18 days  
Accumulated Amortization $ (160) (85)
Trademarks, patents and other    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 71 67
Accumulated Amortization (37) (23)
Net Carrying Amount, Finite-lived $ 34 44
Weighted- Average Amortization Period (in years) 5 years 4 months 24 days  
Accumulated Amortization $ (37) (23)
Franchise rights    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 144 128
Accumulated Amortization (97) (90)
Net Carrying Amount, Finite-lived $ 47 38
Weighted- Average Amortization Period (in years) 20 years  
Accumulated Amortization $ (97) (90)
Licenses    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 114 131
Indefinite-lived intangible assets 5  
Accumulated Amortization (10) (70)
Net Carrying Amount, Finite-lived $ 104 61
Weighted- Average Amortization Period (in years) 3 years 10 months 24 days  
Accumulated Amortization $ (10) $ (70)