INVESTMENTS AND FAIR VALUE MEASUREMENT - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Assets
Total held-to-maturity investments	$ 527	$ 485
Corporate debt securities
Assets
Total held-to-maturity investments	91	204
U.S. Treasury securities
Assets
Total held-to-maturity investments	426	202
U.S. government agency securities
Assets
Total held-to-maturity investments	10	42
Certificates of deposit
Assets
Total held-to-maturity investments		34
Commercial paper
Assets
Total held-to-maturity investments		3
Estimate of Fair Value Measurement
Assets
Total held-to-maturity investments	527	485
Estimate of Fair Value Measurement | Corporate debt securities
Assets
Total held-to-maturity investments	91	204
Estimate of Fair Value Measurement | U.S. Treasury securities
Assets
Total held-to-maturity investments	426	202
Estimate of Fair Value Measurement | U.S. government agency securities
Assets
Total held-to-maturity investments	10	42
Estimate of Fair Value Measurement | Certificates of deposit
Assets
Total held-to-maturity investments		34
Estimate of Fair Value Measurement | Commercial paper
Assets
Total held-to-maturity investments		3
Estimate of Fair Value Measurement | Level 1
Assets
Total held-to-maturity investments	426	202
Estimate of Fair Value Measurement | Level 1 | Corporate debt securities
Assets
Total held-to-maturity investments	0	0
Estimate of Fair Value Measurement | Level 1 | U.S. Treasury securities
Assets
Total held-to-maturity investments	426	202
Estimate of Fair Value Measurement | Level 1 | U.S. government agency securities
Assets
Total held-to-maturity investments	0	0
Estimate of Fair Value Measurement | Level 1 | Certificates of deposit
Assets
Total held-to-maturity investments		0
Estimate of Fair Value Measurement | Level 1 | Commercial paper
Assets
Total held-to-maturity investments		0
Estimate of Fair Value Measurement | Level 2
Assets
Total held-to-maturity investments	101	283
Estimate of Fair Value Measurement | Level 2 | Corporate debt securities
Assets
Total held-to-maturity investments	91	204
Estimate of Fair Value Measurement | Level 2 | U.S. Treasury securities
Assets
Total held-to-maturity investments	0	0
Estimate of Fair Value Measurement | Level 2 | U.S. government agency securities
Assets
Total held-to-maturity investments	10	42
Estimate of Fair Value Measurement | Level 2 | Certificates of deposit
Assets
Total held-to-maturity investments		34
Estimate of Fair Value Measurement | Level 2 | Commercial paper
Assets
Total held-to-maturity investments		3
Estimate of Fair Value Measurement | Level 3
Assets
Total held-to-maturity investments	0	0
Estimate of Fair Value Measurement | Level 3 | Corporate debt securities
Assets
Total held-to-maturity investments	0	0
Estimate of Fair Value Measurement | Level 3 | U.S. Treasury securities
Assets
Total held-to-maturity investments	0	0
Estimate of Fair Value Measurement | Level 3 | U.S. government agency securities
Assets
Total held-to-maturity investments	$ 0	0
Estimate of Fair Value Measurement | Level 3 | Certificates of deposit
Assets
Total held-to-maturity investments		0
Estimate of Fair Value Measurement | Level 3 | Commercial paper
Assets
Total held-to-maturity investments		$ 0