CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash Flows From Operating Activities:
Net income	$ 226	$ 201
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	616	611
Amortization of deferred financing costs and original issue discounts	4	5
Gain on sales of rental equipment	(102)	(108)
Gain on sales of non-rental equipment	(1)	(4)
Stock compensation expense, net	22	25
Merger related costs	0	(26)
Restructuring charge	4	1
Loss on repurchase/redemption of debt securities and amendment of ABL facility	26	123
Excess tax benefits from share-based payment arrangements	(53)	0
Increase in deferred taxes	69	70
Changes in operating assets and liabilities, net of amounts acquired:
Decrease in accounts receivable	68	37
Increase in inventory	(2)	(3)
Decrease (increase) in prepaid expenses and other assets	64	(3)
Increase in accounts payable	337	401
Decrease in accrued expenses and other liabilities	(31)	(80)
Net cash provided by operating activities	1,247	1,250
Cash Flows From Investing Activities:
Purchases of other companies, net of cash acquired	(14)	(58)
Net cash used in investing activities	(522)	(876)
Cash Flows From Financing Activities:
Proceeds from debt	3,964	5,907
Payments of debt	(4,320)	(5,647)
Payment of contingent consideration	0	(52)
Proceeds from the exercise of common stock options	0	1
Common stock repurchased	(336)	(501)
Payments of financing costs	(12)	(26)
Excess tax benefits from share-based payment arrangements	53	0
Net cash used in financing activities	(651)	(318)
Effect of foreign exchange rates	12	(14)
Net increase in cash and cash equivalents	86	42
Cash and cash equivalents at beginning of period	179	158
Cash and cash equivalents at end of period	265	200
Supplemental disclosure of cash flow information:
Cash paid for income taxes, net	3	30
Cash paid for interest	219	253
Rental equipment
Cash Flows From Investing Activities:
Purchases of equipment	(722)	(1,016)
Proceeds from sales of equipment	249	240
Nonrental equipment
Cash Flows From Investing Activities:
Purchases of equipment	(42)	(50)
Proceeds from sales of equipment	$ 7	$ 8