FINANCIAL INSTRUMENTS (Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash and Cash Equivalents [Line Items]
Gross realized gains	$ 50	$ 94	$ 51
Gross realized losses	12	40	18
Within one year, Amortized Cost	34
One to five years, Amortized Cost	672
Six to ten years, Amortized Cost	743
After ten years, Amortized Cost	548
Total, Amortized Cost	1,997	1,495
Within one year, Fair Value	37
One to five years, Fair Value	697
Six to ten years, Fair Value	743
After ten years, Fair Value	582
Total, Fair Value	2,059	1,634
Equity securities	20	40
Proceeds from Sale of Debt Securities, Available-for-sale	$ 424	$ 837	$ 1,138