Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
	Jan. 29, 2024	Mar. 31, 2024
Class of Stock [Line Items]
Common stock share value		$ 228
Third Stock Purchase Agreement Amendment
Class of Stock [Line Items]
Contract with customer, asset, before allowance for credit loss		228
Capitalized contract cost, gross		$ 5
Gilead | Third Stock Purchase Agreement Amendment
Class of Stock [Line Items]
Issuance of common stock (in shares)	15.2
Shares issued, price per share (in dollars per share)	$ 21.00
Common stock share value	$ 320
Premiums earned, net	$ 87