Segment Information (Reconciliation to income (loss) from continuing operations) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2015		Sep. 30, 2014	Sep. 30, 2015		Sep. 30, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit	$ 690		$ 688	$ 1,832		$ 1,725
Selling, general and administrative expenses	(178)		(194)	(534)		(549)
Merger related costs	0		(4)	26		(13)
Restructuring charge	0		2	(1)	[1]	2
Non-rental depreciation and amortization	(66)		(70)	(202)		(200)
Interest expense, net	(107)		(124)	(460)		(436)
Other income, net	1	[2]	5	10	[3]	10
Income before provision for income taxes	340		303	671		539
Equipment rentals
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit	607		599	1,588		1,481
Other lines of business
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Gross profit	$ 83		$ 89	$ 244		$ 244

[1] Reflected in our condensed consolidated statements of income as “Restructuring charge.” These charges are not allocated to our reportable segments.

[2] Other (income) expense, net includes an adjustment to the amount of royalties Holdings receives from URNA and its subsidiaries as discussed below (see Item 2- Management’s Discussion and Analysis of Financial Condition and Results of Operations- Liquidity and Capital Resources- Relationship between Holdings and URNA).

[3] Other (income) expense, net includes an adjustment to the amount of royalties Holdings receives from URNA and its subsidiaries as discussed below (see Item 2- Management’s Discussion and Analysis of Financial Condition and Results of Operations- Liquidity and Capital Resources- Relationship between Holdings and URNA).