Income Taxes (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Entity Information [Line Items]
Estimated annual effective income tax rate			13.20%
Effective Income Tax Rate Reconciliation, Including Discontinued Operations, Percent	19.90%	17.20%	13.30%	67.70%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			22.40%
Subsidiaries [Member]
Entity Information [Line Items]
Effective income tax rates		35.30%		(24.80%)
Effective Income Tax Rate Reconciliation, Including Discontinued Operations, Percent	20.90%		17.60%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			22.40%