BANK BORROWINGS AND LONG-TERM DEBT (Details 3) (USD $)	12 Months Ended			0 Months Ended				0 Months Ended					0 Months Ended			0 Months Ended				12 Months Ended		0 Months Ended	1 Months Ended	12 Months Ended		0 Months Ended		0 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended			12 Months Ended				0 Months Ended			12 Months Ended				0 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Oct. 19, 2011 Credit Facility	Oct. 19, 2011 Credit Facility LIBOR	Oct. 19, 2011 Credit Facility LIBOR Minimum	Oct. 19, 2011 Credit Facility LIBOR Maximum	Oct. 19, 2011 Credit Facility Prime rate	Oct. 19, 2011 Credit Facility Federal funds rate	Oct. 19, 2011 Credit Facility Prime rate, federal funds rate plus 0.50% and LIBOR for a one-month interest period plus 1.00%	Oct. 19, 2011 Credit Facility Prime rate, federal funds rate plus 0.50% and LIBOR for a one-month interest period plus 1.00% Minimum	Oct. 19, 2011 Credit Facility Prime rate, federal funds rate plus 0.50% and LIBOR for a one-month interest period plus 1.00% Maximum	Oct. 19, 2011 Credit Facility LIBOR for a one-month interest period	Mar. 31, 2012 Revolving Credit Facility	Oct. 19, 2011 Revolving Credit Facility	Oct. 19, 2011 Revolving Credit Facility Minimum	Oct. 19, 2011 Revolving Credit Facility Maximum	Mar. 31, 2013 Other Credit Lines	Mar. 31, 2012 Other Credit Lines	Mar. 31, 2013 Term Loan	Oct. 19, 2011 Term Loan	Aug. 02, 2010 1% Convertible Subordinated Notes	Dec. 31, 2010 6.25% Senior Subordinated Notes	Mar. 31, 2011 6.25% Senior Subordinated Notes	Oct. 01, 2007 Previous Term Loan Facility	Feb. 20, 2013 4.625% Notes due February 2020	Mar. 31, 2013 4.625% Notes due February 2020	Feb. 20, 2013 5.000% Notes due February 2023	Mar. 31, 2013 5.000% Notes due February 2023	Feb. 20, 2013 Notes due 2020 and 2023	Mar. 31, 2013 Notes due 2020 and 2023	Mar. 31, 2013 Notes due 2020 and 2023 Minimum	Feb. 20, 2013 Term Loan Agreement	Oct. 19, 2011 Term Loan Agreement	Mar. 31, 2008 Term Loan Agreement	Mar. 31, 2013 Term Loan Agreement LIBOR	Mar. 31, 2013 Term Loan Agreement Prime rate	Mar. 31, 2013 Term Loan Agreement Federal funds rate	Mar. 31, 2013 Term Loan Agreement Prime rate or Federal Funds rate plus 0.50%	Sep. 27, 2010 Asia Term Loan	Feb. 17, 2011 Asia Term Loan	Sep. 28, 2010 Asia Term Loan	Mar. 31, 2013 Asia Term Loan LIBOR	Feb. 17, 2011 Asia Term Loan LIBOR	Sep. 28, 2010 Asia Term Loan LIBOR	Sep. 27, 2010 Asia Term Loan LIBOR	Sep. 27, 2010 Asia Term Loan Prime rate	Sep. 27, 2010 Asia Term Loan Federal funds rate
Bank borrowings and long-term debt
New debt instrument																										$ 500,000,000		$ 500,000,000
Debt instrument interest rate (as a percent)																						1.00%	6.25%	6.25%		4.625%	4.625%	5.00%	5.00%
Proceeds from the notes offering	1,250,213,000	2,833,704,000	3,471,494,000																											990,600,000
Cash on hand used to repay debt																														9,400,000
Repay outstanding borrowings	1,000,000,000	480,000,000	315,495,000																														1,000,000,000	480,000,000
Percentage of ownership interest owned in subsidiaries that guarantees indebtedness or is a borrower under the term loan agreement and revolving line of credit	100.00%																														100.00%
Percentage of Notes principal that may be redeemed upon occurrence of a change of control repurchase event																															101.00%
Percentage of principal amount of the then outstanding Notes due and payable																																25.00%
Revolving credit facility				2,000,000,000											1,500,000,000										1,800,000,000
Long-term debt maturities, number of years				5 years
Term loan facility																					500,000,000
Borrowings outstanding														140,000,000				0	0														1,200,000,000		1,700,000,000
Increase in limit of term loan																				50,000,000
Repayment of outstanding borrowings																				20,000,000
Line of credit facility, interest rate				i) LIBOR plus the applicable margin for LIBOR loans ranging between 1.25% and 2.25%, based on the Company's credit ratings or (ii) the base rate (the greatest of the agent's prime rate, the federal funds rate plus 0.50% and LIBOR for a one-month interest period plus 1.00%) plus an applicable margin ranging between 0.25% and 1.25%, based on the Company's credit rating.
Debt instrument, description of variable rate basis					LIBOR			prime rate	federal funds rate	the greatest of the agent's prime rate, the federal funds rate plus 0.50% and LIBOR for a one-month interest period plus 1.00%			LIBOR for one-month interest period																							LIBOR	prime rate	federal funds rate	prime rate or the federal funds rate plus 0.50%				LIBOR				prime rate	Federal Funds rate
Debt instrument, basis spread on variable rate						1.25%	2.25%		0.50%		0.25%	1.25%	1.00%																							2.25%		0.50%	1.25%					2.28%	2.15%	2.30%	1.00%	0.50%
Percentage of quarterly commitment fee, per annum																0.20%	0.45%
Uncommitted revolving credit facilities, lines of credit and other loans																		274,200,000
Amount paid for redemption of Convertible Subordinated Notes	391,859,000	2,389,121,000	3,420,594,000																			240,000,000	308,500,000
Number of shares issued																						0
Aggregate principal balance of Convertible Subordinated Notes redeemed																							302,200,000
Redemption price as a percentage of principal amount																							102.083%								100.00%
Loss associated with redemption of notes																								13,200,000
Write-off of unamortized debt issuance costs																								6,900,000
Debt instrument premium on redemption price																								6,300,000
Principal payments due quarterly																																								500,000
Debt instrument, fee amount																																									$ 1,000,000	$ 1,400,000