Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Accrued incentive compensation	$ 298	$ 268
Accrued compensation and benefits	77	64
Lease liability	47	45
Deferred revenue	80	78
Reserve for policy cancellations	73	53
Accrued interest	27	33
Accrued rent and vendor expenses	19	21
Other	32	46
Total	$ 653	$ 608