Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Consolidated effective tax rate	18.10%	19.90%	31.50%	19.20%
Deferred tax assets associated with unrealized investment losses	$ 689		$ 689
Valuation allowance of deferred tax assets associated with unrealized investment losses	$ 422		$ 422