Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
OPERATING ACTIVITIES:
Net income	$ 858.1		$ 714.6
Depreciation and amortization:
Property, plant and equipment	144.6		146.4
Other, net	58.1		24.8
Pension contributions	(93.7)		(12.9)
Change in operating assets and liabilities:
Trade and other receivables	(27.6)		(419.1)
Wholesale receivables on new trucks	(177.6)		(429.1)
Sales-type finance leases and dealer direct loans on new trucks	(112.1)		(18.6)
Inventories	(201.0)		(197.7)
Accounts payable and accrued expenses	13.9		663.4
Income taxes, warranty and other	60.9		288.0
Net Cash Provided by Operating Activities	916.6		1,151.3
INVESTING ACTIVITIES:
Retail loans and direct financing leases originated	(2,332.3)		(1,862.1)
Collections on retail loans and direct financing leases	1,773.8		1,560.1
Marketable securities purchases	(498.5)		(1,424.9)
Marketable securities sales and maturities	445.8		951.8
Payments for property, plant and equipment	(334.6)		(214.7)
Acquisition of equipment for operating leases	(962.7)		(1,013.6)
Proceeds from asset disposals	251.2		247.6
Other, net	(4.9)		(29.5)
Net Cash Used in Investing Activities	(1,662.2)		(1,785.3)
FINANCING ACTIVITIES:
Cash dividends paid	(455.9)		(153.1)
Purchase of treasury stock	(162.1)		(250.2)
Stock compensation transactions	7.4		4.4
Net (decrease) increase in commercial paper and short-term bank loans	(557.9)		989.8
Proceeds from long-term debt	1,951.1		1,065.5
Payments of long-term debt	(402.6)		(1,144.1)
Net Cash Provided by Financing Activities	380.0		512.3
Effect of exchange rate changes on cash	9.4		(39.5)
Net Decrease in Cash and Cash Equivalents	(356.2)		(161.2)
Cash and cash equivalents at beginning of period	2,106.7		2,040.8
Cash and cash equivalents at end of period	1,750.5		1,879.6
Financial Services
Depreciation and amortization:
Equipment on operating leases and other	377.8		359.3
Provision for losses on financial services receivables	15.2		32.2
FINANCING ACTIVITIES:
Cash and cash equivalents at beginning of period	116.1	[1]
Cash and cash equivalents at end of period	$ 65.5

[1] The December 31, 2011 consolidated balance sheet has been derived from audited financial statements.