Restructuring - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015 Employee	Dec. 31, 2014 Employee	Dec. 31, 2013 Employee	Dec. 31, 2016 USD ($)
2015 Acquisition Integration [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated	180
Restructuring and Related Cost, Number of Positions Eliminated	140
Restructuring and Related Cost, Expected Cost | $				$ 10
2014 T15 Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated	325	75
Restructuring and Related Cost, Number of Positions Eliminated	315
2011 Avis Europe Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated		230	580