Income Taxes - Summary of Expiration of Tax Credits and Net Operating Loss Carryforwards (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Income Taxes [Line Items]
General business credit	$ 324
Total tax credits and NOL carryforwards	$ 963
Deferred tax general business credits expiration date	2027-2043
Domestic Tax Authority [Member]
Income Taxes [Line Items]
Federal and Florida net operating losses (NOL's) carryforward expiration	$ 135
Deferred tax general business credits expiration date	2037
Domestic Tax Authority [Member] | Tax Cuts and Jobs Act of 2017 Provisions
Income Taxes [Line Items]
Federal and Florida net operating losses (NOL's) carryforward Not subject to expiration	$ 199	[1]
Deferred tax general business credits expiration date	indefinite	[1]
State and Local Jurisdiction [Member] | Tax Cuts and Jobs Act of 2017 Provisions
Income Taxes [Line Items]
Federal and Florida net operating losses (NOL's) carryforward Not subject to expiration	$ 305	[1]
Deferred tax general business credits expiration date	indefinite	[1]

[1] Indefinite carryforward for Federal NOLs and NOLs for states that have adopted the U.S. Tax Cuts and Jobs Act of 2017 provisions, generated in tax years beginning after December 31, 2017.