Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended
		Jul. 14, 2015	Jun. 30, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Subsequent Event [Line Items]
Purchase commitments			$ 41.9
Dividends Payable, Date Declared					May 05, 2015	Feb. 03, 2015
Dividends Payable, Date to be Paid					Jun. 23, 2015	Mar. 18, 2015
Dividends Payable, Date of Record					Jun. 09, 2015	Mar. 03, 2015
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends Payable, Date Declared				Jul. 28, 2015
Dividends Payable, Date to be Paid				Sep. 15, 2015
Dividends Payable, Date of Record				Aug. 28, 2015
Dividends, Per Share, Declared				$ 0.30
Sony | Share-based payments for content arrangements | Subsequent Event [Member]
Subsequent Event [Line Items]
Shares of restricted stock to be issued in the fourth quarter of 2015	[1]	25,000
Purchase commitments		$ 157.8

[1] Includes 95,000 shares that vested on January 1, 2015.