XML 99 R51.htm IDEA: XBRL DOCUMENT v3.20.4
PROPERTY, EQUIPMENT AND SOFTWARE, NET - Depreciation Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 42 $ 41 $ 35
Capitalized internally developed software costs 36 31 33
Depreciation expense for capitalized internally developed software costs $ 31 $ 29 $ 24