PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,003	$ 1,993
Less: Accumulated depreciation	(1,219)	(1,324)
Property and equipment, net	784	669
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 608	758
Computer equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)	2 years
Computer equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)	4 years
Capitalized software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,096	900
Capitalized software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)	1 year
Capitalized software | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)	7 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 228	277
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)	15 years
Office equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 71	$ 58
Office equipment, furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)	1 year
Office equipment, furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)	7 years