CASH, CASH EQUIVALENTS, AND INVESTMENTS - Contractual Maturities of Debt Securities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Line Items]
Fair Value	$ 238
Within 1 Year	102
After 1 Year through 5 Years	136
Corporate debt securities
Cash and Cash Equivalents [Line Items]
Fair Value	207	$ 30
Within 1 Year	71
After 1 Year through 5 Years	136
Commercial paper
Cash and Cash Equivalents [Line Items]
Fair Value	15	81
Within 1 Year	15
After 1 Year through 5 Years	0
Asset-backed securities
Cash and Cash Equivalents [Line Items]
Fair Value	7	$ 13
Within 1 Year	7
After 1 Year through 5 Years	0
Certificates of deposit
Cash and Cash Equivalents [Line Items]
Fair Value	5
Within 1 Year	5
After 1 Year through 5 Years	0
Sovereign bonds
Cash and Cash Equivalents [Line Items]
Fair Value	4
Within 1 Year	4
After 1 Year through 5 Years	$ 0