LEASES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Lease, Cost	$ 426	$ 397	$ 494
Amortization of right-of-use assets - finance	106	105	76
Interest on lease liabilities - finance	34	32	27
Total finance lease cost	140	137	103
Short-term lease cost	255	255	238
Variable lease cost	929	611	381
Sublease income	(9)	(10)	(6)
Total lease cost	1,741	1,390	1,210
Operating cash flows for operating leases	424	393	497
Operating cash flows for finance leases	34	32	27
Financing cash flows for finance leases	127	114	74
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	(309)	(151)	(25)
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	234	62	512
Operating lease right-of-use assets	1,320	1,227
Total Lease Assets	2,110	1,953
Operating lease liabilities - current	329	287
Operating lease liabilities - noncurrent	1,032	997
Total Lease Liabilities	$ 2,234	$ 2,074
Weighted-average remaining lease term - Operating leases	6 years 10 months 24 days	7 years 7 months 6 days
Weighted-average remaining lease term - Finance leases	10 years 6 months	11 years
Weighted-average discount rate - Operating leases	4.82%	4.49%
Weighted-average discount rate - Finance leases	4.84%	4.29%
Lessee, Operating Lease, Liability, to be Paid, Year One	$ 378
Finance Lease, Liability, to be Paid, Year One	153
Lessee, Operating Lease, Liability, to be Paid, Year Two	287
Finance Lease, Liability, Payments, Due Year Two	144
Lessee, Operating Lease, Liability, Payments, Due Year Three	225
Finance Lease, Liability, Payments, Due Year Three	96
Lessee, Operating Lease, Liability, Payments, Due Year Four	174
Finance Lease, Liability, Payments, Due Year Four	88
Lessee, Operating Lease, Liability, Payments, Due Year Five	135
Finance Lease, Liability, Payments, Due Year Five	82
Lessee, Operating Lease, Liability, Payments, Due after Year Five	421
Finance Lease, Liability, Payments, Due after Year Five	545
Lessee, Operating Lease, Liability, Payments, Due	1,620
Finance Lease, Liability, Payment, Due	1,108
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	259
Finance Lease, Liability, Undiscounted Excess Amount	235
Lease liability	1,361
Finance Lease, Liability	873
Lessee, Additional Leases Not yet Commenced, Assumptions and Judgment, Amount	$ 359
Lessee, Additional Leases Not yet Commenced, Term of Contract	20 years
Lease Contract Amendments
Increase (Decrease) Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ (98)		$ (193)
Increase (Decrease) Operating Lease, Liability, Current	10
Increase (Decrease) Operating Lease, Liability, Noncurrent	(47)
Increase (Decrease) Finance Lease, Liability, Noncurrent	61
Increase (Decrease) Finance Lease, Liability, Current	4
Property, Plant and Equipment
Finance Lease, Right-of-Use Asset, before Accumulated Amortization	1,328	$ 1,167
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Finance Lease, Right-of-Use Asset, Accumulated Amortization	538	441
Long-term Debt Due Within One Year
Finance Lease, Liability	117	109
Long-Term Debt and Lease Obligations
Finance Lease, Liability	756	681
Residual Value Guarantees
Recorded liability	0	0
Maximum future payments	$ 295	$ 258
Maximum
Lessee, Operating and Finance Leases, Remaining Lease Term	51 years