PROPERTY AND EQUIPMENT, NET (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 1,993	$ 2,127
Less: Accumulated depreciation		(1,324)	(1,305)
Property and equipment, net		669	822
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 758	728
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)		6 years
Capitalized software
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 900	742
Capitalized software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)		2 years
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		$ 277	268
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)		1 year
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		$ 58	61
Office equipment, furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)		2 years
Office equipment, furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (years)		8 years
Building construction-in-progress (1)
Property, Plant and Equipment [Line Items]
Property and equipment, gross	[1]	$ 0	$ 328

[1] See Note 10 for additional information on the sale and leaseback transaction.