ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Available-for-sale Securities [Member]
Investments, Fair Value Disclosure	$ 39	$ 34
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Investments, Fair Value Disclosure	26	22
Fair Value, Inputs, Level 2 [Member] | Fixed Income Securities [Member]
Investments, Fair Value Disclosure	$ 13	$ 12