Leases and Rentals - Rent Expense under Non-Cancelable Operating Leases (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Leases [Abstract]
Minimum rent	$ 80	$ 98	$ 105
Contingent rent	15	12	11
Sublease rent	(2)	(4)	(4)
Total rent expense	$ 93	$ 106	$ 112