Stockholders' Equity and Per Share Data (Narrative) (Details)	Mar. 31, 2016 years $ / shares shares	Mar. 31, 2015 $ / shares shares	Mar. 31, 2014 shares	Dec. 31, 2013 shares	Jul. 10, 2013 shares	Mar. 31, 2013 shares
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Capital stock authorized (in shares)	10,020,000,000
Preferred stock, shares authorized (in shares)	20,000,000
Preferred stock, par value | $ / shares	$ 0.0001
Common stock, shares, outstanding (in shares)	4,000,000,000
Class of warrant or right, exercise price of warrants or rights | $ / shares	$ 5.25
Exercise period for warrant | years	5
Series 1 Voting [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common shares, shares authorized (in shares)	9,000,000,000
Common stock, par value | $ / shares	$ 0.01
Non Voting [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common shares, shares authorized (in shares)	1,000,000,000
Common stock, par value | $ / shares	$ 0.01
Predecessor [Member] | Options and RSUs [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Number of shares that had no effect on computation of dilutive weighted average number of shares outstanding (in shares)					61,000,000	74,000,000
Successor [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Common shares, shares authorized (in shares)	9,000,000,000	9,000,000,000
Common stock, par value | $ / shares	$ 0.01	$ 0.01
Number of stock that will be issued shares warrant (in shares)	55,000,000
Successor [Member] | Options and RSUs [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Number of shares that had no effect on computation of dilutive weighted average number of shares outstanding (in shares)	73,000,000	56,000,000	60,000,000	70,000,000