Earnings Per Share (Detail) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011
Earnings Per Share [Abstract]
Basic weighted average shares outstanding	350,714	353,346		364,147
Dilutive effect of stock options and restricted stock/RSUs	2,785	0	[1]	3,377	[1]
Diluted weighted average shares outstanding	353,499	353,346		367,524
Antidilutive outstanding options excluded from computation of earnings per share	8,246			23,079

[1] Excludes the following outstanding options to purchase shares of common stock and nonvested restricted stock because the effect of including these options and restricted shares would be antidilutive: 2011 - 23,079 and 2013 - 8,246.