STOCKHOLDERS' EQUITY AND NET LOSS PER SHARE - Schedule of Reconciliation of Numerator and Denominator Used in Calculation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Numerator
Net loss	$ (541)	$ (1,446)
Net loss attributable to common stockholders, basic	(545)	(1,446)
Net loss attributable to common stockholders, diluted	$ (545)	$ (1,446)
Denominator
Weighted-average Class A and Class B common shares outstanding - basic (in shares)	1,137	978
Effect of dilutive securities (in shares)	0	0
Weighted-average Class A and Class B common shares outstanding - diluted (in shares)	1,137	978
Net loss per share attributable to Class A and Class B common stockholders, basic (in dollars per share)	$ (0.48)	$ (1.48)
Net loss per share attributable to Class A and Class B common stockholders, diluted (in dollars per share)	$ (0.48)	$ (1.48)