XML 64 R48.htm IDEA: XBRL DOCUMENT v3.22.4
Income Taxes (Difference In Income Tax Expense And Expected Expense) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]      
U.S. federal statutory income tax rate 21.00% 21.00% 21.00%
U.S. federal income tax expense at statutory rate $ 302.4 $ 253.6 $ 237.9
State income taxes, net of federal benefit 45.6 34.9 36.3
Other, net 5.1 (5.7) (0.6)
Total income tax expense $ 353.1 $ 282.8 $ 273.6
Effective income tax rate 24.50% 23.40% 24.20%