Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
GOODWILL AND INTANGIBLE ASSETS - Summary of Intangible Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived $ 5,743 $ 5,347
Accumulated Amortization $ (3,469) (3,180)
Weighted-Average Amortization Period (in years) 7 years 8 months 12 days  
Accumulated Amortization $ (3,469) (3,180)
Net Carrying Value 2,274 2,167
Trademarks, patents, and other [Member] [Member]    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 18 29
Accumulated Amortization $ (13) (21)
Weighted-Average Amortization Period (in years) 12 years  
Accumulated Amortization $ (13) (21)
Net Carrying Value 5 8
Capitalized software    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 4,531 4,125
Accumulated Amortization $ (2,962) (2,704)
Weighted-Average Amortization Period (in years) 6 years 10 months 24 days  
Accumulated Amortization $ (2,962) (2,704)
Net Carrying Value 1,569 1,421
Customer relationships    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 729 730
Accumulated Amortization $ (344) (282)
Weighted-Average Amortization Period (in years) 10 years 7 months 6 days  
Accumulated Amortization $ (344) (282)
Net Carrying Value 385 448
Trade Names    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 200 200
Accumulated Amortization 0 0
Accumulated Amortization 0 0
Net Carrying Value 200 200
Franchise rights    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 165 146
Accumulated Amortization $ (113) (109)
Weighted-Average Amortization Period (in years) 20 years  
Accumulated Amortization $ (113) (109)
Net Carrying Value 52 37
Licenses    
Intangible Assets by Major Class [Line Items]    
Gross Carrying Amount, Finite-lived 100 117
Accumulated Amortization $ (37) (64)
Weighted-Average Amortization Period (in years) 3 years 9 months 18 days  
Accumulated Amortization $ (37) (64)
Net Carrying Value $ 63 $ 53