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CAPITAL STOCK AND STOCK AWARD PLANS Summary of Stock Options Grants by Year of Grant (Detail)	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	4,722,330
Weighted average grant date fair value | $ / shares	$ 13.52
Unvested options	2,740,041
2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	894,254
Weighted average grant date fair value | $ / shares	$ 15.72
Unvested options	352,850
2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	1,143,939
Weighted average grant date fair value | $ / shares	$ 13.15
Unvested options	725,564
2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	1,405,906
Weighted average grant date fair value | $ / shares	$ 11.83
Unvested options	702,953
2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	1,278,231
Weighted average grant date fair value | $ / shares	$ 14.17
Unvested options	958,674
2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, net of forfeitures	1,428,531
Weighted average grant date fair value | $ / shares	$ 12.66
Unvested options	1,428,531

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Net number of share options (or share units) granted during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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