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DEBT (Debt Outstanding - Additional Information) (Detail) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2016 | Dec. 31, 2015
Notes, 6.30%, due July 2017 |  |
Debt Instrument [Line Items] |  |
Debt, interest rate | 6.30% | 6.30%
Debt, maturity date | 2017-07 | 2017-07
Notes, 3.30%, due Dec 2022 |  |
Debt Instrument [Line Items] |  |
Debt, interest rate | 3.30% | 3.30%
Debt, maturity date | 2022-12 | 2022-12
Debentures, 6.90%, due July 2028 |  |
Debt Instrument [Line Items] |  |
Debt, interest rate | 6.90% | 6.90%
Debt, maturity date | 2028-07 | 2028-07
Notes, 7.00%, due July 2037 |  |
Debt Instrument [Line Items] |  |
Debt, interest rate | 7.00% | 7.00%
Debt, maturity date | 2037-07 | 2037-07

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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