SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Cash and cash equivalents	$ 7,941,000,000	$ 11,568,000,000
Short-term investments	1,192,000,000	0
Cash and cash equivalents and short-term investments	9,133,000,000	11,568,000,000
Restricted cash	0	$ 531,000,000
Contract with customer, liability	186,000,000
Contract with customer, liability, current	77,000,000
Contract with customer, liability, noncurrent	$ 109,000,000