Income Taxes (Schedule Of Net Deferred Tax Assets) (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Income Taxes [Abstract]
Other current assets	¥ 36,277	¥ 31,853
Other assets-Other	9,774	7,179
Other current liabilities	(132)	(293)
Other long-term liabilities	(25,847)	(7,228)
Net deferred tax assets	¥ 20,072	¥ 31,511

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.

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Amount after allocation of valuation allowances of noncurrent deferred tax asset attributable to deductible temporary differences and carryforwards. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed within one year or operating cycle, if longer.

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- Definition

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