CAPITAL STOCK AND STOCK AWARD PLANS Summary of Performance Based Options by Year of Grant (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	4,704,620
Weighted average grant date fair value	$ 13.53
Unvested options	3,778,657
2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	911,430
Weighted average grant date fair value	$ 15.72
Unvested options	537,744
2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	1,155,285
Weighted average grant date fair value	$ 13.15
Unvested options	957,394
2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	1,424,531
Weighted average grant date fair value	$ 11.83
Unvested options	1,070,145
2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	1,213,374
Weighted average grant date fair value	$ 14.23
Unvested options	1,213,374