Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investment income	$ 28.6	$ 33.1	$ 38.2
Net sales and revenues	17,123.8	17,050.5	16,355.2
Provision for losses on receivables	12.9	20.0	41.4
Income Before Income Taxes	1,695.0	1,628.9	1,506.9
Income taxes	523.7	517.3	464.6
Net Income	1,171.3	1,111.6	1,042.3
Net Income Per Share
Basic	$ 3.31	$ 3.13	$ 2.87
Diluted	$ 3.30	$ 3.12	$ 2.86
Weighted average number of common shares outstanding
Basic	354.2	355.1	363.3
Diluted	355.2	355.8	364.4
Truck, Parts and Other
Net sales and revenues	15,948.9	15,951.7	15,325.9
Cost of sales and revenues	13,900.7	13,908.3	13,341.8
Research and development	251.4	279.3	288.2
Selling, general and administrative	465.3	476.4	452.9
Interest and other expense (income), net	5.3	(0.3)	10.7
Costs and Expenses, Total	14,622.7	14,663.7	14,093.6
Income Before Income Taxes	1,326.2	1,288.0	1,232.3
Financial Services
Interest and fees	462.8	453.7	423.1
Operating lease, rental and other revenues	712.1	645.1	606.2
Revenues	1,174.9	1,098.8	1,029.3
Interest and other borrowing expenses	155.9	158.4	181.3
Depreciation and other expense	571.7	517.4	476.2
Selling, general and administrative	94.2	95.2	94.0
Provision for losses on receivables	12.9	20.0	41.4
Costs and Expenses, Total	834.7	791.0	792.9
Income Before Income Taxes	$ 340.2	$ 307.8	$ 236.4