Contributions to overseas defined contribution pension plans

No definition available.

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- Definition

The amount of health care benefit costs which are equivalent to the required contribution for the period. The cost of retiree health care benefits are not covered through retiree contributions but not reserved for the future cost.

+ References

No definition available.

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- Definition

Fair Value of Real Estate Funds

+ References

No definition available.

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- Definition

Number of years required to entitle payments upon termination.

+ References

No definition available.

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- Definition

Percentage of gains and losses relates to benefit obligation and fair value of plan assets.

+ References

No definition available.

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- Definition

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6503844

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-Publisher FASB

-Name Accounting Standards Codification

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-Subparagraph (e)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

This represents the entire assets recognized in the balance sheet that are associated with the defined benefit plans.

+ References

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-Name Accounting Standards Codification

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-Subparagraph (SX 210.7-03.10)

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-Name Accounting Standards Codification

-Topic 942

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-Section S99

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-Subparagraph (SX 210.9-03.10)

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-Number 132R

-Paragraph 5

-Subparagraph c

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 715

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-Section 35

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 49

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(iv)(b)(i)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

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-Paragraph 5

-Subparagraph b

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- Definition

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ References

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- Definition

Amount of purchases, sales, issues, and settlements (net) which have taken place in relation to assets measured at fair value on a recurring basis using unobservable inputs (level 3).

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(2)

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- Definition

The amount of cash or cash equivalents contributed by the entity to fund its pension plans.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

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- Definition

The amount of pension benefit costs recognized during the period for (1) defined benefit plans and (2) defined contribution plans. For defined benefit plans, pension expense includes the following components: service cost, interest cost, expected return on plan assets, gain (loss) on plan assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. For defined contribution plans, the pension expense generally equals the firm's contribution to employees' accounts (if the firm contributes) during the period.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

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-Subparagraph h

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Employee benefit plans - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2013 Y	Mar. 31, 2012	Mar. 31, 2011
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Number of years required for payment	2
Gains and losses of greater of the benefit obligation or the fair value of plan assets	10.00%
Accumulated benefit obligation	¥ 231,321	¥ 238,614
Fair value of plan assets	191,674	159,652	120,727
Expected contributions to plans	29,664
Contributions to the defined contribution pension plans	3,600	3,741	3,233
Contributions to overseas defined contribution pension plans	7,448	7,882	6,903
Health care benefit cost	7,434	7,614	6,760
Level 1 [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Fair value of plan assets	104,811	87,854
Level 2 [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Fair value of plan assets	59,505	49,562
Level 3 [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Fair value of plan assets	27,358	22,236	9,645
Equities [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Plan assets of domestic plans investments	23.00%
Fair value of plan assets	30,568	27,230
Equities [Member] \| Level 1 [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Fair value of plan assets	30,568	27,230
Debt securities [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Plan assets of domestic plans investments	50.00%
Life insurance [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Plan assets of domestic plans investments	15.00%
Other [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Plan assets of domestic plans investments	12.00%
Non-Japan plan [Member] \| Level 1 [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Fair value of plan assets	21	32
Non-Japan plan [Member] \| Level 2 [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Fair value of plan assets	25,296	20,848
Non-Japan plan [Member] \| Level 3 [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Fair value of plan assets	6,906	6,083
Fair value of real estate funds and annuities	6,906	6,083
Level 3 assets purchased		4,416
Overseas Subsidiaries [Member]
Pension Plans Postretirement And Other Employee Benefits [Line Items]
Recognized asset for pension benefits	¥ 9,067	¥ 5,838