Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
OPERATING ACTIVITIES:
Net Income	$ 4,600.8	$ 3,011.6	$ 1,865.5
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization, Property, plant and equipment	415.0	332.2	270.0
Depreciation and amortization, Equipment on operating leases and other	508.9	458.0	633.3
Provision for losses on financial services receivables	31.3	5.5	0.5
Deferred taxes	(303.7)	(208.0)	(208.6)
Other, net	46.5	13.9	20.3
Pension contributions	(27.3)	(39.1)	(25.1)
(Increase) decrease in assets other than cash and cash equivalents:
Trade and other receivables	(430.7)	(441.7)	(412.9)
Wholesale receivables on new trucks	(1,266.4)	(935.4)	90.8
Inventories	(350.7)	(272.7)	(628.0)
Other assets, net	(127.2)	(31.9)	(129.8)
Increase (decrease) in liabilities:
Accounts payable and accrued expenses	375.8	840.3	693.4
Residual value guarantees and deferred revenues	(36.8)	(44.3)	(82.4)
Other liabilities, net	754.5	338.6	99.7
Net Cash Provided by Operating Activities	4,190.0	3,027.0	2,186.7
INVESTING ACTIVITIES:
Originations of retail loans and finance leases	(6,378.2)	(5,058.7)	(4,570.6)
Collections on retail loans and finance leases	4,330.4	3,888.0	4,113.3
Net (increase) decrease in wholesale receivables on used equipment	(29.1)	(15.9)	12.2
Purchases of marketable debt securities	(967.2)	(888.4)	(903.1)
Proceeds from sales and maturities of marketable debt securities	803.6	718.1	727.0
Payments for property, plant and equipment	(695.0)	(525.0)	(559.1)
Acquisitions of equipment for operating leases	(567.5)	(865.5)	(1,073.7)
Proceeds from asset disposals	614.5	687.7	904.1
Other, net	17.5	26.7	(12.8)
Net Cash Used in Investing Activities	(2,871.0)	(2,033.0)	(1,362.7)
FINANCING ACTIVITIES:
Payments of cash dividends	(1,518.6)	(1,004.7)	(708.0)
Purchases of treasury stock	(3.5)	(2.1)	(1.5)
Proceeds from stock compensation transactions	51.5	35.7	37.5
Net increase in commercial paper, short-term bank loans and other	1,721.0	370.1	24.7
Proceeds from term debt	3,085.0	3,171.7	2,101.1
Payments on term debt	(2,233.2)	(2,265.8)	(2,336.7)
Net Cash Provided by (Used in) Financing Activities	1,102.2	304.9	(882.9)
Effect of exchange rate changes on cash	69.6	(36.3)	(52.4)
Net Increase (Decrease) in Cash and Cash Equivalents	2,490.8	1,262.6	(111.3)
Cash and cash equivalents at beginning of year	4,690.9	3,428.3	3,539.6
Cash and cash equivalents at end of year	$ 7,181.7	$ 4,690.9	$ 3,428.3