Earnings or Loss per Ordinary Share (Narrative) (Details) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Stock Options, SARs, PSARs, Restricted Shares, and RSUs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Aggregate number of shares excluded from computation of EPS	43.5	49.9
PSUs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Aggregate number of shares excluded from computation of EPS	6.0
PGUs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Aggregate number of shares excluded from computation of EPS		4.7
Convertible Debt Securities and Other Obligations [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Aggregate number of shares excluded from computation of EPS	2.6	14.3