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Unaudited Supplemental Pro Forma Financial Information Presents Combined Results of Operations of Sony and GSN (Detail) (Sony and Game Show Network, Llc, JPY ¥) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2011
Sony and Game Show Network, Llc
Business Acquisition [Line Items]
Net sales	¥ 6,325,310
Operating income	199,445
Net loss attributable to Sony Corporation's stockholders	¥ (259,731)
Basic EPS	¥ (258.81)
Diluted EPS	¥ (258.81)

- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References+ Details

- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References+ Details