LEASE COMMITMENTS - NARRATIVE (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 726	$ 1,062
Finance lease	589
Offshore And Onshore Drilling Rigs
Lessee, Lease, Description [Line Items]
Operating lease assets	32
Compressors
Lessee, Lease, Description [Line Items]
Operating lease assets	62
Storage Facilities
Lessee, Lease, Description [Line Items]
Operating lease assets	52
Office Space
Lessee, Lease, Description [Line Items]
Operating lease assets	386
Other Field Equipment
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 32
Oil And Gas Exploration And Development Equipment | Low end of range
Lessee, Lease, Description [Line Items]
Contract expiration term	1 year
Oil And Gas Exploration And Development Equipment | High end of range
Lessee, Lease, Description [Line Items]
Contract expiration term	8 years
Pipelines, Rail Cars, Storage Facilities, Easements And Real Estate
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 207
Real Estate Leases | Low end of range
Lessee, Lease, Description [Line Items]
Contract expiration term	1 year
Real Estate Leases | High end of range
Lessee, Lease, Description [Line Items]
Contract expiration term	10 years