Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Preferred stock, no par value	$ 0	$ 0
Preferred stock, authorized	1,000,000.0	1,000,000.0
Preferred stock, issued	0	0
Common stock, par value	$ 1	$ 1
Common stock, authorized	1,200,000,000	1,200,000,000
Common stock, issued	347,700,000	347,300,000
Treasury stock, shares	20,000.00
Truck, Parts and Other
Allowance for losses	$ 6.0	$ 6.0
Financial Services
Allowance for credit losses	$ 119.6	$ 116.9