Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues	$ 23,522.3	$ 18,728.5	$ 25,599.7
Provision for losses on receivables	0.5	28.8	15.4
Investment income	15.5	35.9	82.3
Total Income Before Income Taxes	2,378.6	1,657.9	3,099.2
Income taxes	526.5	359.5	711.3
Net Income	$ 1,852.1	$ 1,298.4	$ 2,387.9
Net Income Per Share
Basic	$ 5.33	$ 3.74	$ 6.88
Diluted	$ 5.32	$ 3.74	$ 6.87
Weighted Average Number of Common Shares Outstanding
Basic	347.8	346.8	346.9
Diluted	348.4	347.4	347.5
Truck, Parts and Other
Revenues	$ 21,834.5	$ 17,154.3	$ 24,119.7
Cost of sales and revenues	19,110.1	15,076.4	20,555.6
Research and development	324.1	273.9	326.6
Selling, general and administrative	547.4	459.2	561.5
Interest and other (income), net	(72.6)	(54.1)	(42.0)
Costs and Expenses, Total	19,909.0	15,755.4	21,401.7
Income before income taxes	1,925.5	1,398.9	2,718.0
Financial Services
Interest and fees	524.4	527.4	583.0
Operating lease, rental and other revenues	1,163.4	1,046.8	897.0
Revenues	1,687.8	1,574.2	1,480.0
Interest and other borrowing expenses	150.9	192.1	230.5
Depreciation and other expenses	969.4	1,008.0	798.2
Selling, general and administrative	129.4	122.2	137.0
Provision for losses on receivables	0.5	28.8	15.4
Costs and Expenses, Total	1,250.2	1,351.1	1,181.1
Income before income taxes	$ 437.6	$ 223.1	$ 298.9