Reconciliation of the U.S. Statutory Tax Rate to Our Effective Income Tax Rate for Continuing Operations (Detail)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
U.S. statutory tax rate	35.00%	35.00%	35.00%
U.S. state income taxes, net of U.S. federal tax benefit	2.90%	2.70%	2.60%
Nondeductible expenses	0.20%	0.20%	0.50%
Non-U.S. income	(5.20%)	(4.80%)	(5.70%)
Change in valuation allowance	1.20%	(0.40%)	0.30%
Tax credits	(0.30%)	(0.30%)	(0.40%)
Other, net	(2.30%)	(1.60%)	(2.10%)
Effective rate	31.50%	30.80%	30.20%