Acquisitions (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			3 Months Ended	12 Months Ended				12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 RSC [Member]	Dec. 31, 2013 RSC [Member]	Dec. 31, 2012 RSC [Member]	Apr. 30, 2012 RSC [Member]	Dec. 31, 2011 RSC [Member] Locations	Dec. 31, 2012 Coble Trench Safety [Member]	Feb. 29, 2012 Coble Trench Safety [Member] Locations	Dec. 31, 2013 Rent World [Member]	Aug. 31, 2013 Rent World [Member] Locations	Dec. 31, 2011 United States [Member] RSC [Member] state	Dec. 31, 2011 Canadian provinces [Member] RSC [Member] province
Business Acquisition [Line Items]
Percentage of equity interest acquired							100.00%
Revenue reported by acquired entity for last annual period						$ 1,500			$ 20		$ 5
Number of rental locations (in locations)								440		11		2
Number of states in which entity operates													43
Number of provinces in which entity operates														3
RSC merger related costs	9	111	19	13
Interim bridge financing fees						31
Capitalized debt issuance costs							67
Increase in the volume of OEC on rent					22.10%	63.20%
Restructuring charge	$ 12	$ 99	$ 19