CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows From Operating Activities:
Net income	$ 2,424	$ 2,105	$ 1,386
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,781	2,217	1,983
Amortization of deferred financing costs and original issue discounts	14	13	13
Gain on sales of rental equipment	(786)	(566)	(431)
Gain on sales of non-rental equipment	(21)	(9)	(10)
Insurance proceeds from damaged equipment	(38)	(32)	(25)
Stock compensation expense, net	94	127	119
Merger related costs	0	0	3
Restructuring charge	28	0	2
Loss on repurchase/redemption of debt securities	0	17	30
Increase in deferred taxes	35	537	268
Changes in operating assets and liabilities, net of amounts acquired:
Increase in accounts receivable	(167)	(329)	(300)
Decrease (increase) in inventory	19	(25)	9
Decrease (increase) in prepaid expenses and other assets	281	(164)	248
(Decrease) increase in accounts payable	(45)	304	307
Increase in accrued expenses and other liabilities	85	238	87
Net cash provided by operating activities	4,704	4,433	3,689
Cash Flows From Investing Activities:
Payments for purchases of rental equipment	(3,714)	(3,436)	(2,998)
Payments for purchases of non-rental equipment and intangible assets	(356)	(254)	(200)
Proceeds from sales of rental equipment	1,574	965	968
Proceeds from sales of non-rental equipment	60	24	30
Insurance proceeds from damaged equipment	38	32	25
Purchases of other companies, net of cash acquired	(574)	(2,340)	(1,436)
Purchases of investments	(4)	(7)	0
Net cash used in investing activities	(2,976)	(5,016)	(3,611)
Cash Flows From Financing Activities:
Proceeds from debt	8,576	9,885	8,364
Payments of debt	(8,574)	(8,241)	(8,462)
Payments of financing costs	0	(24)	(8)
Dividends paid	(406)	0	0
Common stock repurchased, including tax withholdings for share based compensation	(1,070)	(1,068)	(34)
Net cash (used in) provided by financing activities	(1,474)	552	(140)
Effect of foreign exchange rates	3	(7)	4
Net increase (decrease) in cash and cash equivalents	257	(38)	(58)
Cash and cash equivalents at beginning of year	106	144	202
Cash and cash equivalents at end of year	363	106	144
Supplemental disclosure of cash flow information:
Cash paid for interest	614	406	391
Cash paid for income taxes, net	$ 493	$ 326	$ 202