Consolidated Statements of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Investment income	$ 8.9	$ 8.0
Income Before Income Taxes	479.0	286.3
Income taxes	151.7	93.0
Net Income	327.3	193.3
Net Income Per Share:
Basic	$ 0.92	$ 0.53
Diluted	$ 0.91	$ 0.53
Weighted Average Common Shares Outstanding:
Basic	357.0	365.8
Diluted	357.8	367.2
Dividends declared per share	$ 0.18	$ 0.12
Comprehensive Income	422.4	325.5
Truck and Other
Net sales and revenues	4,514.7	3,042.6
Cost of sales and revenues	3,919.9	2,632.3
Research and development	72.3	68.4
Selling, general and administrative	125.8	109.9
Interest and other (income) expense, net	(2.1)	4.0
Costs and Expenses, Total	4,115.9	2,814.6
Income Before Income Taxes	398.8	228.0
Financial Services
Interest and fees	109.9	101.5
Operating lease, rental and other income	151.5	139.5
Revenues	261.4	241.0
Interest and other borrowing expenses	39.7	46.5
Depreciation and other expense	118.8	110.5
Selling, general and administrative	24.1	23.2
Provision for losses on receivables	7.5	10.5
Costs and Expenses, Total	190.1	190.7
Income Before Income Taxes	$ 71.3	$ 50.3