Commitments, Contingent Liabilities and Other (Details) (JPY ¥) In Millions	12 Months Ended
Mar. 31, 2011	Mar. 31, 2010	Mar. 31, 2009
Aggregate amounts of year-by-year payment of purchase commitments
2012	¥ 207,982
2013	46,707
2014	35,094
2015	25,073
2016	20,338
Later years	14,821
Total	350,015
Changes in product warranty liability
Balance at beginning of the fiscal year	50,856	57,922	59,748
Additional liabilities for warranties	48,610	46,686	60,845
Settlements (in cash or in kind)	(36,537)	(45,218)	(54,498)
Changes in estimate for pre-existing warranty reserve	(4,802)	(7,649)	(2,042)
Translation adjustment	(3,187)	(885)	(6,131)
Balance at end of the fiscal year	¥ 54,940	¥ 50,856	¥ 57,922

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 15
-Subparagraph 5
-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10

+ Details

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- Definition

Total increase (decrease) in the standard and extended product warranty liability due to currency translation.

+ Details

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- Definition

Represents the aggregate increase (decrease) in the liability during the reporting period for accruals related to preexisting standard and extended product warranties (including adjustments for changes in estimates).

+ Details

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- Definition

The carrying amount of the long-term purchase obligation as of the balance sheet date, which equals the sum of all payments due.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 47
-Paragraph 10
-Subparagraph b

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 47
-Paragraph 6

+ Details

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- Definition

The aggregate remaining amount of payments due after the fifth year after the balance sheet date to extinguish a recorded unconditional purchase obligation.

+ References