FINANCIAL INSTRUMENTS (Parentheticals) (Detail)	Mar. 31, 2017
4.375% notes due 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes issued, interest rate	4.375%
5.875% notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes issued, interest rate	5.875%
4.95% notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes issued, interest rate	4.95%
4.50% notes due 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes issued, interest rate	4.50%
5.25% notes due 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes issued, interest rate	5.25%
4.50% notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes issued, interest rate	4.50%
4.75% notes due 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes issued, interest rate	4.75%