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Earnings Per Common Share (Narrative) (Details)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Earnings Per Share [Abstract]        
Antidilutive securities excluded from EPS 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 2us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 3us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount