LEASES - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
ROU asset obtained in exchange for operating lease liability	$ 228
Operating lease payments	189	$ 164
Operating leases not yet commenced	$ 793
ROU asset impairment charge		$ 31
Minimum | Facility Lease
Lessee, Lease, Description [Line Items]
Operating lease, term of contract	1 year
Operating lease, renewal term	1 year
Minimum | Vehicle Lease
Lessee, Lease, Description [Line Items]
Operating lease, term of contract	1 year
Maximum | Facility Lease
Lessee, Lease, Description [Line Items]
Operating lease, term of contract	15 years
Operating lease, renewal term	10 years
Maximum | Vehicle Lease
Lessee, Lease, Description [Line Items]
Operating lease, term of contract	4 years