Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
OPERATING ACTIVITIES:
Net Income	$ 521.7	$ 1,604.0	$ 1,358.8
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization, Property, plant and equipment	302.4	292.2	285.2
Depreciation and amortization, Equipment on operating leases and other	690.7	614.9	632.5
Provision for losses on financial services receivables	18.4	12.4	15.4
Deferred taxes	30.9	(55.2)	(98.0)
Other, net	30.3	46.6	40.4
Pension contributions	(185.7)	(62.9)	(81.1)
(Increase) decrease in assets other than cash and cash equivalents:
Trade and other receivables	(61.8)	105.3	(71.3)
Wholesale receivables on new trucks	401.6	(273.4)	(232.8)
Sales-type finance leases and dealer direct loans on new trucks	116.1	(6.6)	(133.1)
Inventories	64.1	64.3	(189.5)
Other assets, net	41.0	(125.1)	(72.0)
(Decrease) increase in liabilities:
Accounts payable and accrued expenses	(8.6)	(162.6)	252.3
Residual value guarantees and deferred revenues	155.9	242.0	123.1
Other liabilities, net	183.8	260.1	293.7
Net Cash Provided by Operating Activities	2,300.8	2,556.0	2,123.6
INVESTING ACTIVITIES:
Originations of retail loans and direct financing leases	(2,825.9)	(3,064.5)	(3,114.2)
Collections on retail loans and direct financing leases	2,509.8	2,681.9	2,847.6
Net decrease (increase) in wholesale receivables on used equipment	9.5	(24.7)	1.1
Purchases of marketable debt securities	(1,031.9)	(1,329.8)	(1,122.5)
Proceeds from sales and maturities of marketable debt securities	1,304.8	1,035.5	997.9
Payments for property, plant and equipment	(375.2)	(286.7)	(298.2)
Acquisitions of equipment for operating leases	(1,589.7)	(1,438.5)	(1,239.1)
Proceeds from asset disposals	433.8	448.8	395.5
Other, net	0.5	3.1
Net Cash Used in Investing Activities	(1,564.3)	(1,974.9)	(1,531.9)
FINANCING ACTIVITIES:
Payments of cash dividends	(829.3)	(680.5)	(623.8)
Purchases of treasury stock	(70.5)	(201.6)	(42.7)
Proceeds from stock compensation transactions	29.4	21.8	29.1
Net (decrease) increase in commercial paper and short-term bank loans	(322.8)	250.7	349.1
Proceeds from term debt	1,994.8	1,993.2	1,650.8
Payments on term debt	(1,625.1)	(1,580.1)	(1,883.0)
Net Cash Used in Financing Activities	(823.5)	(196.5)	(520.5)
Effect of exchange rate changes on cash	(13.7)	(105.8)	(83.7)
Net (Decrease) Increase in Cash and Cash Equivalents	(100.7)	278.8	(12.5)
Cash and cash equivalents at beginning of year	2,016.4	1,737.6	1,750.1
Cash and cash equivalents at end of year	$ 1,915.7	$ 2,016.4	$ 1,737.6