Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues	$ 5,805.2	$ 4,704.2	$ 11,459.2	$ 8,942.1
Provision for losses on receivables			10.5	12.7
Investment income	14.6	8.7	24.6	16.8
Income before income taxes	719.6	539.0	1,389.0	987.2
Income taxes	160.0	166.0	317.3	303.9
Net Income	$ 559.6	$ 373.0	$ 1,071.7	$ 683.3
Net Income Per Share
Basic	$ 1.59	$ 1.06	$ 3.04	$ 1.94
Diluted	$ 1.59	$ 1.06	$ 3.04	$ 1.94
Weighted Average Number of Common Shares Outstanding
Basic	351.7	351.8	352.1	351.7
Diluted	352.5	352.7	353.0	352.7
Dividends declared per share	$ 0.28	$ 0.25	$ 0.53	$ 0.49
Comprehensive Income	$ 384.2	$ 505.8	$ 971.6	$ 886.2
Truck, Parts and Other
Net sales and revenues	5,467.2	4,397.9	10,789.0	8,333.6
Cost of sales and revenues	4,647.3	3,764.0	9,182.8	7,154.9
Research and development	76.7	66.1	152.7	127.1
Selling, general and administrative	127.0	111.8	264.1	226.3
Interest and other (income), net	(16.4)	(11.9)	(35.1)	(25.9)
Costs and Expenses, Total	4,834.6	3,930.0	9,564.5	7,482.4
Income before income taxes	632.6	467.9	1,224.5	851.2
Financial Services
Interest and fees	121.6	104.2	237.3	206.4
Operating lease, rental and other revenues	216.4	202.1	432.9	402.1
Revenues	338.0	306.3	670.2	608.5
Interest and other borrowing expenses	45.7	37.4	87.0	71.5
Depreciation and other expenses	185.5	172.8	371.9	352.5
Selling, general and administrative	29.8	26.9	60.9	52.6
Provision for losses on receivables	4.6	6.8	10.5	12.7
Costs and Expenses, Total	265.6	243.9	530.3	489.3
Income before income taxes	$ 72.4	$ 62.4	$ 139.9	$ 119.2