Vehicle Rental Activities (Components Of The Company's Vehicles) (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Vehicle Rental Activities [Abstract]
Rental vehicles	$ 14,284	$ 11,195
Less: Accumulated depreciation	(1,429)	(1,500)
Rental Vehicles Net, Total	12,855	9,695
Vehicles held for sale	372	963
Vehicles, net	13,227	10,658
Accounts Payable, Other, Current	557	577
Other Receivables	$ 251	$ 217