CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities:
Net income	$ 183	$ 109
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	393	310
Amortization of deferred financing costs and original issue discounts	3	2
Gain on sales of rental equipment	(74)	(46)
Gain on sales of non-rental equipment	(1)	(1)
Gain on insurance proceeds from damaged equipment	(2)	(1)
Stock compensation expense, net	19	16
Merger related costs	1	2
Restructuring charge	2	0
Increase in deferred taxes	37	10
Changes in operating assets and liabilities, net of amounts acquired:
Decrease in accounts receivable	80	65
Increase in inventory	(9)	(6)
Decrease in prepaid expenses and other assets	42	9
Increase in accounts payable	103	139
(Decrease) increase in accrued expenses and other liabilities	(135)	14
Net cash provided by operating activities	642	622
Cash Flows From Investing Activities:
Purchases of rental equipment	(280)	(219)
Purchases of non-rental equipment	(33)	(22)
Proceeds from sales of rental equipment	181	106
Proceeds from sales of non-rental equipment	4	2
Insurance proceeds from damaged equipment	2	1
Purchases of other companies, net of cash acquired	(52)	0
Purchases of investments	0	(1)
Net cash used in investing activities	(178)	(133)
Cash Flows From Financing Activities:
Proceeds from debt	2,256	1,502
Payments of debt	(2,563)	(1,939)
Proceeds from the exercise of common stock options	1	1
Common stock repurchased	(226)	(23)
Payments of financing costs	0	(7)
Net cash used in financing activities	(532)	(466)
Effect of foreign exchange rates	(6)	2
Net (decrease) increase in cash and cash equivalents	(74)	25
Cash and cash equivalents at beginning of period	352	312
Cash and cash equivalents at end of period	278	337
Supplemental disclosure of cash flow information:
Cash paid for income taxes, net	10	1
Cash paid for interest	$ 153	$ 90