Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Provision for losses on receivables	$ 5.9	$ 5.9
Investment income	10.0	8.1
Income before income taxes	669.4	448.2
Income taxes	157.3	137.9
Net Income	$ 512.1	$ 310.3
Net Income Per Share
Basic	$ 1.45	$ 0.88
Diluted	$ 1.45	$ 0.88
Weighted Average Number of Common Shares Outstanding
Basic	352.5	351.6
Diluted	353.5	352.7
Dividends declared per share	$ 0.25	$ 0.24
Comprehensive Income	$ 587.4	$ 380.4
Truck, Parts and Other
Net sales and revenues	5,321.8	3,935.7
Cost of sales and revenues	4,535.5	3,390.9
Research and development	76.0	61.0
Selling, general and administrative	137.1	114.5
Interest and other (income), net	18.7	14.0
Costs and Expenses, Total	4,729.9	3,552.4
Income before income taxes	591.9	383.3
Financial Services
Interest and fees	115.7	102.2
Operating lease, rental and other revenues	216.5	200.0
Revenues	332.2	302.2
Interest and other borrowing expenses	41.3	34.1
Depreciation and other expenses	186.4	179.7
Selling, general and administrative	31.1	25.7
Provision for losses on receivables	5.9	5.9
Costs and Expenses, Total	264.7	245.4
Income before income taxes	$ 67.5	$ 56.8