Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues	$ 23,495.7	$ 19,456.4	$ 17,033.3
Provision for losses on receivables	16.5	22.3	18.4
Investment income	60.9	35.3	27.6
Income before income taxes	2,810.2	2,173.3	1,130.4
Income taxes	615.1	498.1	608.7
Net Income	$ 2,195.1	$ 1,675.2	$ 521.7
Net Income Per Share
Basic	$ 6.25	$ 4.76	$ 1.49
Diluted	$ 6.24	$ 4.75	$ 1.48
Weighted Average Number of Common Shares Outstanding
Basic	351.0	351.9	351.1
Diluted	351.8	352.9	351.8
Truck, Parts and Other
Net sales and revenues	$ 22,138.6	$ 18,187.5	$ 15,846.6
Cost of sales and revenues	18,925.0	15,628.9	13,533.6
Research and development	306.1	264.7	247.2
Selling, general and administrative	524.9	464.0	442.6
European Commission charge	0.0	0.0	833.0
Interest and other (income), net	(60.8)	(46.4)	(6.9)
Costs and Expenses, Total	19,695.2	16,311.2	15,049.5
Income before income taxes	2,443.4	1,876.3	797.1
Financial Services
Interest and fees	497.7	431.1	426.2
Operating lease, rental and other revenues	859.4	837.8	760.5
Revenues	1,357.1	1,268.9	1,186.7
Interest and other borrowing expenses	186.9	149.6	127.2
Depreciation and other expenses	728.0	727.5	635.2
Selling, general and administrative	119.8	107.8	100.2
Provision for losses on receivables	16.5	22.3	18.4
Costs and Expenses, Total	1,051.2	1,007.2	881.0
Income before income taxes	$ 305.9	$ 261.7	$ 305.7