INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Rate
US federal statutory tax rate	21.00%	21.00%	21.00%
State and Local Income Taxes, Net of Federal Income Tax Effect	(3.28%)
Foreign tax effects	0.78%
R&D credits	(4.37%)
Changes in valuation allowances	2.67%
Meals and entertainment	2.60%
Parking fees	2.88%
Stock based compensation	6.30%
Other nondeductible items	1.04%
Changes in unrecognized tax benefits	(1.95%)
2024 stub return true-up	1.89%
Other - other reconciling items	1.84%
Effective tax rate (in percent)	31.40%	27.50%	27.10%
Tax
Income Before Income Tax	$ 146	$ 545	$ 323
US federal statutory tax rate	31	114	68
Nondeductible expenses		24	14
State and Local Income Taxes, Net of Federal Income Tax Effect	(5)	24	17
State income sourcing		(5)	(5)
Foreign tax effects	1
R&D credits	(6)
Changes in valuation allowances	4	1	(1)
Tax credits		(7)	(3)
Meals and entertainment	4
Parking fees	4
Stock based compensation	9
Other nondeductible items	2
Changes in unrecognized tax benefits	(3)	5	(5)
2024 stub return true-up	3
Other - net	2	(6)	3
Income tax expense	$ 46	$ 150	$ 88