Business Segment Information (Details) (JPY ¥) In Millions	12 Months Ended
Mar. 31, 2011	Mar. 31, 2010	Mar. 31, 2009
Sales and operating revenue:
Customers	¥ 7,181,273	¥ 7,213,998	¥ 7,729,993
Consumer, Professional & Devices [Member]
Sales and operating revenue:
Customers	3,345,048	3,207,546	3,926,386
Intersegment	227,696	310,573	431,363
Total	3,572,744	3,518,119	4,357,749
Networked Products & Services [Member]
Sales and operating revenue:
Customers	1,493,136	1,511,575	1,684,758
Intersegment	86,195	61,041	70,885
Total	1,579,331	1,572,616	1,755,643
Pictures [Member]
Sales and operating revenue:
Customers	599,654	705,237	717,513
Intersegment	312
Total	599,966	705,237	717,513
Music [Member]
Sales and operating revenue:
Customers	457,771	511,097	363,074
Intersegment	12,972	11,519	23,979
Total	470,743	522,616	387,053
Financial Services [Member]
Sales and operating revenue:
Customers	798,495	838,300	523,307
Intersegment	8,031	13,096	14,899
Total	806,526	851,396	538,206
All Other [Member]
Sales and operating revenue:
Customers	377,816	379,862	453,603
Intersegment	70,004	80,904	76,523
Total	447,820	460,766	530,126
Corporate and elimination [Member]
Sales and operating revenue:
Customers	¥ (295,857)	¥ (416,752)	¥ (556,297)

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 1
-Article 5

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- Definition

Amount of revenue from transactions with other operating segments of the same entity. Must be disclosed if the amount (a) is included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-Paragraph 27
-Subparagraph b

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- Definition

Amount of total revenue for the reportable segment, including revenue from external customers, transactions with other operating segments of the same entity, and (gross) interest revenue. All considered to be "operating revenue" for purposes of the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-Paragraph 27
-Subparagraph a, b, c

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