Income Taxes (Details 2) (JPY ¥) In Millions	Mar. 31, 2011	Mar. 31, 2010
Deferred tax assets
Operating loss carryforwards for tax purposes	¥ 316,856	¥ 242,172
Accrued pension and severance costs	103,674	130,508
Film costs	16,405	22,683
Warranty reserves and accrued expenses	69,240	74,528
Future insurance policy benefits	26,177	21,810
Accrued bonus	24,825	22,764
Inventory	35,989	31,608
Depreciation	35,128	37,553
Tax credit carryforwards	74,284	70,737
Reserve for doubtful accounts	8,404	9,243
Impairment of investments	33,743	42,948
Deferred revenue in the Pictures segment	19,254	17,579
Other	140,745	136,363
Gross deferred tax assets	904,724	860,496
Less: Valuation allowance	(463,702)	(117,486)
Total deferred tax assets	441,022	743,010
Deferred tax liabilities
Insurance acquisition costs	(155,073)	(151,548)
Unbilled accounts receivable in the Pictures segment	(40,469)	(42,421)
Unrealized gains on securities	(33,101)	(38,792)
Intangible assets acquired through stock exchange offerings	(32,136)	(32,456)
Undistributed earnings of foreign subsidiaries and corporate joint ventures	(46,261)	(44,717)
Other	(109,903)	(96,674)
Gross deferred tax liabilities	(416,943)	(406,608)
Net deferred tax assets	¥ 24,079	¥ 336,402

Deferred Tax Assets Deferred Income In Segment One.

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Deferred Tax Assets Depreciation.

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Deferred Tax Assets Film Cost.

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Deferred tax liabilities intangibles acquired through stock exchange offerings.

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Deferred Tax Liabilities Unbilled Accounts Receivable.

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Deferred Tax Liabilities Unrealized Gain On Securities.

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The sum of the tax effects as of the balance sheet date of the amounts of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws ( before the valuation allowance, if any, to reduce such sum amount to net realizable value). Includes any tax benefit realized in deferred tax assets for significant impacts of tax planning strategies.

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The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to inventory related items which can only be realized if sufficient taxable income is generated in future periods to enable the deduction to be taken.

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For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods.

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The aggregate tax effects as of the balance sheet date of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; net of deducting the allocated valuation allowance, if any, to reduce such amount to net realizable value.

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The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

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The tax effect as of the balance sheet date of the amount of estimated future tax deductions arising from other temporary differences not otherwise specified in the taxonomy.

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The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

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The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee bonuses, and which is more likely than not to be realized if sufficient taxable income is generated in future periods to enable the deduction to be taken.

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The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from pension costs, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

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The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated losses reflected in the allowance for doubtful accounts, which can only be deducted for tax purposes when actual bad debts are known, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

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The tax effect as of the balance sheet date of the amount of the amount of the estimated future tax deductions arising from estimated impairment losses, which can only be deducted for tax purposes when impaired assets are sold or otherwise disposed of, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

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The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from estimated policyholder reserves, which will be deductible from future taxable income when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the tax deduction to be taken.

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The tax effect as of the balance sheet date of the amount of the estimated future tax effects arising from all other reserves, which can only be deducted for tax purposes when losses pertaining to such reserves are actually incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

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The sum of the portions of deferred tax assets as of the balance sheet date for which, based on the weight of available evidence, it is more likely than not will not be realized through future reductions of tax-based income.

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The cumulative amount of all deferred tax liabilities, which result from applying the applicable tax rate to net taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. A taxable temporary difference is a difference between the tax basis and the carrying amount of an asset or liability in the financial statements prepared in accordance with generally accepted accounting principles that will result in taxable amounts in one or more future periods.

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The amount as of the balance sheet date of the estimated future tax effects attributable to policy acquisition costs being expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, which will reverse in future periods when amortization of such capitalized costs cannot be deducted for tax purposes.

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The cumulative amount of the estimated future tax effects attributable to other temporary differences not otherwise specified in this taxonomy that were expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, or which were recognized as revenue under GAAP but not for tax purposes, which will reverse in future periods.

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The amount as of the balance sheet date of the estimated future tax effects attributable to undistributed earnings of subsidiaries and other recognized entities in countries outside the country of domicile which will increase future taxable income when such earnings are distributed into the country of domicile.

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