Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
OPERATING ACTIVITIES:
Net Income	$ 2,195.1	$ 1,675.2	$ 521.7
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization, Property, plant and equipment	337.6	321.4	302.4
Depreciation and amortization, Equipment on operating leases and other	716.5	786.1	690.7
Provision for losses on financial services receivables	16.5	22.3	18.4
Deferred taxes	17.5	(173.9)	30.9
Other, net	35.1	43.6	30.3
Pension contributions	(88.9)	(70.6)	(185.7)
(Increase) decrease in assets other than cash and cash equivalents:
Trade and other receivables	(242.0)	(207.2)	(61.8)
Wholesale receivables on new trucks	(512.3)	(272.0)	401.6
Sales-type finance leases and dealer direct loans on new trucks	(27.0)	71.9	116.1
Inventories	(332.7)	(149.9)	64.1
Other assets, net	(217.1)	131.4	41.0
Increase (decrease) in liabilities:
Accounts payable and accrued expenses	528.9	333.6	(8.6)
Residual value guarantees and deferred revenues	275.0	166.3	155.9
Other liabilities, net	290.1	37.6	183.8
Net Cash Provided by Operating Activities	2,992.3	2,715.8	2,300.8
INVESTING ACTIVITIES:
Originations of retail loans and direct financing leases	(3,858.9)	(3,116.8)	(2,825.9)
Collections on retail loans and direct financing leases	2,914.0	2,713.7	2,509.8
Net (increase) decrease in wholesale receivables on used equipment	(0.9)	5.2	9.5
Purchases of marketable debt securities	(615.9)	(970.3)	(1,031.9)
Proceeds from sales and maturities of marketable debt securities	931.5	779.5	1,304.8
Payments for property, plant and equipment	(457.6)	(423.4)	(375.2)
Acquisitions of equipment for operating leases	(1,494.7)	(1,423.2)	(1,589.7)
Proceeds from asset disposals	653.7	470.7	433.8
Other, net	(1.9)		0.5
Net Cash Used in Investing Activities	(1,930.7)	(1,964.6)	(1,564.3)
FINANCING ACTIVITIES:
Payments of cash dividends	(804.3)	(558.3)	(829.3)
Purchases of treasury stock	(354.4)		(70.5)
Proceeds from stock compensation transactions	19.3	39.3	29.4
Net increase (decrease) in commercial paper and short-term bank loans	625.9	352.1	(322.8)
Proceeds from term debt	2,339.9	1,670.2	1,994.8
Payments on term debt	(1,755.3)	(1,897.1)	(1,625.1)
Net Cash Provided by (Used in) Financing Activities	71.1	(393.8)	(823.5)
Effect of exchange rate changes on cash	(61.5)	91.6	(13.7)
Net Increase (Decrease) in Cash and Cash Equivalents	1,071.2	449.0	(100.7)
Cash and cash equivalents at beginning of year	2,364.7	1,915.7	2,016.4
Cash and cash equivalents at end of year	$ 3,435.9	$ 2,364.7	$ 1,915.7