Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Effective income tax rate	5.80%	19.80%	13.50%	19.50%
Unrecognized tax benefits	$ 88		$ 88
Decrease in unrecognized tax benefits reasonably possible	5		5
Effective income tax rate reconciliation, nondeductible expense, impairment losses, amount	142		142
Noncash impairment charge, investments	$ 570		$ 570