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Acquired additional equity interest in GSN, Value.

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Acquisitions.

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Additional cash payment by subsidiary.

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Amount decrease in goodwill as a resulted changes recognized from percentage interest acquire.

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Bye/sell provision exercised annually.

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Cash payment by parent.

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Cash payment by subsidiary.

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Cash received by acquiree company.

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Percentage Share Recorded.

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Call price maximum.

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Call price minimum.

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Recognized Gain On Sale.

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Remeasured equity interest.

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Remeasured Equity Interest Value.

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SONY BMG Joint venture share.

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Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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Amount of cash paid to acquire the entity.

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Fair Value of the liabilities incurred by the acquirer to former owners of the acquiree, including the fair value of any contingent consideration. If liabilities transferred as consideration remain within the combined entity after the business combination (for example, because the assets or liabilities were transferred to the acquiree rather than to its former owners), and the acquirer therefore retains control of them; in that situation, the acquirer shall measure those liabilities at their carrying amounts immediately before the acquisition date.

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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In a business combination achieved in stages, this element represents the acquisition-date percentage of equity in the acquiree held by the acquirer immediately before the acquisition date.

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This item represents the amount of net sales proceeds received on disposal of an equity method investment.

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This item represents the amount of gain or loss arising from the disposal of an equity method investment.

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Acquisitions (Details Textuals) In Millions, unless otherwise specified					1 Months Ended	12 Months Ended								1 Months Ended		12 Months Ended
	Oct. 01, 2008 JPY (¥)	Mar. 31, 2009 Gracenote, Twowaytraffic, and Other [Member] JPY (¥)	Oct. 01, 2008 Assets and liabilities recorded at the historical carryover basis [Member]	Oct. 01, 2008 Acquired assets and liabilities recorded at fair value [Member]	Aug. 31, 2004 Sony BMG Acquisition [Member]	Mar. 31, 2010 Sony BMG Acquisition [Member] JPY (¥)	Mar. 31, 2011 Sony BMG Acquisition [Member]	Oct. 01, 2008 Sony BMG Acquisition [Member] JPY (¥)	Mar. 31, 2011 Other Acquisitions [Member] JPY (¥)	Mar. 31, 2010 Other Acquisitions [Member] JPY (¥)	Mar. 31, 2009 Other Acquisitions [Member] JPY (¥)	Mar. 31, 2009 Gracenote [Member] JPY (¥)	Mar. 31, 2009 2waytraffic [Member] JPY (¥)	Mar. 31, 2011 GSN [Member] JPY (¥)	Apr. 30, 2009 GSN [Member] JPY (¥)	Mar. 31, 2011 GSN [Member] USD ($)	Mar. 31, 2011 GSN [Member] JPY (¥)
Acquisitions (Textuals) [Abstract]
Equity interest under the equity method							0.50	0.50
SONY BMG Joint venture share					between Sony and Bertelsmann 50/50
Total acquisition cost								¥ 97,424	¥ 2,884	¥ 17,616	¥ 95,458	¥ 27,521	¥ 38,176
Cash consideration for acquisition								95,410				27,108	24,369
Transaction costs for acquisition								2,014				413	1,288
Sony's share in acquisition by cash payment								63,606
Sony BMG'S share in acquisition by cash payment								31,803
Additional cash received by Bertelsmann from SONY BMG								31,803
Total cash receipts to Bertelsmann AG								127,213
Percentage share recorded			50.00%	50.00%
Amount decrease in goodwill due to purchase price adjustment						8,649
Cost of acquisition, third-party debt												0	12,519
Contingent consideration and subject to future change										1,420
Recorded as goodwill	94,605	61,614							1,415	13,425
Recorded as intangible assets	109,085	32,977							1,227	3,708
Cash proceeds on sale of ownership															8,831
Gain on sale of ownership															8,322
Acquired additional equity interest in GSN														5.00%
Acquired additional equity interest in GSN, Value														4,849
Term of put right, exercisable																60 days	60 days
Put exercise price, minimum																234
Put exercise price, maximum																288
Bye/sell provision exercised annually																P60D	P60D
Remeasured equity interest																35.00%	35.00%
Total remeasured equity interest																	33,940
Recognized gain on remeasured equity interest																	¥ 26,991