Liability for Pension and Other Retirement Benefits (Details 8) (Pension Plans, Defined Benefit [Member], JPY ¥) In Millions	Mar. 31, 2011
Pension Plans, Defined Benefit [Member]
Estimated future benefit payments
2012	¥ 13,482
2013	11,477
2014	7,605
2015	8,495
2016	9,323
Through 2017-2021	¥ 41,663

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The amount of the aggregate benefits expected to be paid in the five fiscal years thereafter (the aggregate amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph f

+ Details

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- Definition

The amount of the benefits expected to be paid in Year 5.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph f

+ Details

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- Definition

The amount of the benefits expected to be paid in Year 4.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph f

+ Details

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- Definition

The amount of the benefits expected to be paid in Year 1.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph f

+ Details

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- Definition

The amount of the benefits expected to be paid in Year 3.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph f

+ Details

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- Definition

The amount of the benefits expected to be paid in Year 2.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph f

+ Details

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