Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 192	$ 150
Marketable securities	805	828
Receivable from collaboration partners ($4 and $6 from a related party)	15	20
Prepaid expenses and other current assets	19	18
Total current assets	1,031	1,016
Long-term marketable securities	8	14
Property and equipment, net	46	47
Other noncurrent assets	71	73
Total assets	1,156	1,150
Current liabilities:
Accounts payable	22	18
Deferred revenue ($72 and $85 to a related party)	72	85
Other current liabilities	98	123
Total current liabilities	192	226
Deferred revenue, noncurrent ($219 and $234 to a related party)	219	234
Long-term debt	48	48
Other noncurrent liabilities	166	157
Commitments
Stockholders’ equity:
Common stock and additional paid-in capital: $0.0001 par value per share; 400.0 shares authorized; 105.9 shares in 2025 and 92.2 shares in 2024 issued and outstanding	1,775	1,617
Accumulated deficit	(1,244)	(1,132)
Total stockholders’ equity	531	485
Total liabilities and stockholders’ equity	$ 1,156	$ 1,150