CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 322,619	$ 326,367
Depreciation, amortization and other impairment charges	345,044	430,238
Changes in working capital and other	450,644	249,452
Net cash provided by operating activities	1,118,307	1,006,057
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(526,026)	(377,901)
Proceeds from the disposition of property and equipment	64,873	49,819
Acquisition of businesses, net of cash acquired	(238,031)	(183,896)
Proceeds from divestiture of business, net of cash held in divested business	4,599	22,585
Other investing activities, net	(12,067)	(93,633)
Net cash provided by (used in) investing activities	(706,652)	(583,026)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from bank borrowings and long-term debt	1,003,294	171,673
Repayments of bank borrowings, long-term debt and capital lease obligations	(518,549)	(290,230)
Payments for early retirement of long-term debt	(544,840)
Payments for repurchase of ordinary shares	(362,693)	(208,208)
Net proceeds from issuance of ordinary shares	21,106	14,632
Other financing activities, net	46,298	85,590
Net cash provided by (used in) financing activities	(355,384)	(226,543)
Effect of exchange rates on cash and cash equivalents	(26,113)	(8,704)
Net increase in cash and cash equivalents	30,158	187,784
Cash and cash equivalents, beginning of period	1,587,087	1,518,329
Cash and cash equivalents, end of period	1,617,245	1,706,113
Non-cash investing activity:
Accounts payable for fixed assets purchases	$ 57,483	$ 74,278