Consolidated Statements of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Investment income	$ 5.1	$ 5.8
Provision for losses on receivables	2.7	3.7
Income Before Income Taxes	561.7	406.5
Income taxes	183.3	132.6
Net Income	378.4	273.9
Net Income Per Share
Basic	$ 1.07	$ 0.77
Diluted	$ 1.06	$ 0.77
Weighted Average Number of Common Shares Outstanding
Basic	355.1	354.9
Diluted	356.1	356.0
Dividends declared per share	$ 0.22	$ 0.20
Comprehensive Income	40.9	279.2
Truck, Parts and Other
Net sales and revenues	4,548.0	4,086.2
Cost of sales and revenues	3,910.2	3,595.5
Research and development	56.2	52.7
Selling, general and administrative	109.5	121.4
Interest and other expense, net	4.5	1.4
Costs and Expenses, Total	4,080.4	3,771.0
Income Before Income Taxes	467.6	315.2
Financial Services
Interest and fees	110.9	112.9
Operating lease, rental and other revenues	173.8	180.8
Revenues	284.7	293.7
Interest and other borrowing expenses	29.1	36.6
Depreciation and other expense	140.4	144.3
Selling, general and administrative	23.5	23.6
Provision for losses on receivables	2.7	3.7
Costs and Expenses, Total	195.7	208.2
Income Before Income Taxes	$ 89.0	$ 85.5