FINANCIAL INSTRUMENTS - Summary of Contractual Maturities of Cash Equivalents and Available-For-Sale Investments (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014
Amortized Cost
Mature in less than one year, Amortized Cost	$ 522.2
Mature in one to five years, Amortized Cost	1,062.0
Mature in after five years, Amortized Cost	0
Total, Amortized Cost	1,584.2
Fair Value
Mature in less than one year, Fair Value	523.3
Mature in one to five years, Fair Value	1,064.8
Mature in after five years, Fair Value	0
Total, Fair Value	$ 1,588.1