INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized tax benefits	$ 3,399	$ 3,951	$ 4,224	$ 4,191
Portion that, if recognized, would reduce tax expense and effective tax rate	2,708	3,072	3,351
Accrued interest on unrecognized tax benefits	635	614	597
Accrued penalties on unrecognized tax benefits	111	111	146
Minimum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months	0	0	0
Portion that, if recognized, would reduce tax expense and effective tax rate	0	0	0
Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months	100	650	250
Portion that, if recognized, would reduce tax expense and effective tax rate	$ 100	$ 600	$ 200