FINANCIAL INSTRUMENTS (Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative [Line Items]
Other income (expense), net	$ 322	$ 13	$ 326	$ (3)
Other Nonoperating Income (Expense)
Derivative [Line Items]
Hedged items (Long-term debt)	0	1	0	(68)
Other Nonoperating Income (Expense) | Fair Value Hedging
Derivative [Line Items]
Derivatives designated as hedging instruments	$ 0	$ (1)	$ 0	$ 68