Income Taxes (Details) (USD $)	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Income Tax Expense Benefit Abstract
Federal: Current	$ (8,000,000)	$ 3,000,000	$ 12,000,000
Federal: Deferred	(118,000,000)	(160,000,000)	72,000,000
State: Current	1,000,000	0	(1,000,000)
State: Deferred	(19,000,000)	(10,000,000)	(10,000,000)
Foreign: Current	699,000,000	552,000,000	611,000,000
Foreign: Deferred	41,000,000	195,000,000	35,000,000
Total	596,000,000	580,000,000	719,000,000
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation Abstract
Statutory Federal tax rate	35.00%	35.00%	35.00%
State taxes, net of Federal tax benefit	(2.00%)	(1.00%)	0.00%
Taxes on foreign earnings	(6.00%)	(5.00%)	(4.00%)
Valuation allowance	3.00%	0.00%	3.00%
Gain (loss) on sale of businesses	4.00%	(3.00%)	(13.00%)
Chilean withholding tax reversals	(3.00%)	0.00%	0.00%
Taxes on cash repatriation	0.00%	0.00%	6.00%
Other - net	0.00%	(1.00%)	1.00%
Effective tax rate	31.00%	25.00%	28.00%
Income Taxes Receivable And Payable Abstract
Income taxes receivable - current	520,000,000	434,000,000
Income taxes receivable - noncurrent	21,000,000	22,000,000
Total income taxes receivable	541,000,000	456,000,000
Income taxes payable - current	701,000,000	508,000,000
Income taxes payable - noncurrent	8,000,000	11,000,000
Total income taxes payable	709,000,000	519,000,000
Valuation Allowance Abstract
Increase Decrease In Deferred Tax Valuation Allowance	336,000,000	261,000,000
Components Of Deferred Tax Assets And Liabilities Abstract
Differences between book and tax basis of property	1,246,000,000	1,694,000,000
Cumulative translation adjustment	94,000,000	(200,000,000)
Other taxable temporary differences	392,000,000	310,000,000
Total deferred tax liability	1,732,000,000	1,804,000,000
Operating loss carryforwards	1,655,000,000	1,697,000,000
Capital loss carryforwards	93,000,000	107,000,000
Bad debt and other book provisions	543,000,000	561,000,000
Retirement costs	315,000,000	283,000,000
Tax credit carryforwards	60,000,000	68,000,000
Other deductible temporary differences	413,000,000	426,000,000
Total gross deferred tax asset	3,079,000,000	3,142,000,000
Less: valuation allowance	1,334,000,000	1,670,000,000
Total net deferred tax asset	1,745,000,000	1,472,000,000
Net deferred tax (asset)/liability	13,000,000	(332,000,000)
Tax Benefits Related To Tax Status Of Operations In Countries Subject To Reduced Tax Rates Abstract
Tax Benefits Related To Tax Status Of Operations In Countries Subject To Reduced Tax Rates	60,000,000	35,000,000	23,000,000
Tax Benefits Related To Tax Status Of Operations In Countries Subject To Reduced Tax Rates Per Share	$ 0.07	$ 0.04	$ 0.03
Income Loss From Continuing Operations By US v/s Foreign Abstract
U.S.	(517,000,000)	(1,015,000,000)	(460,000,000)
Non-U.S.	2,431,000,000	3,331,000,000	2,993,000,000
Total	1,914,000,000	2,316,000,000	2,533,000,000
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense Abstract
Total Expense Benefit For Penalties Related To Unrecognized Tax Benefits	(1,000,000)	0	(2,000,000)
Total Expense For Interest Related To Unrecognized Tax Benefits	(10,000,000)	4,000,000	2,000,000
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued Abstract
Gross Accrued Income Tax Related Interest Included In The Consolidated Balance Sheet	12,000,000	21,000,000
Gross Accrued Income Tax Related Penalties Included In The Consolidated Balance Sheet	4,000,000	5,000,000
Uncertain Tax Positions Additional Disclosures Abstract
Unrecognized Tax Benefits That Would Impact Effective Tax Rate	412,000,000	484,000,000	527,000,000
Unrecognized Tax Benefits That Would Impact Effective Tax Rate Portion With Attributes Warranting Full Valuation Allowance	51,000,000	55,000,000	131,000,000
Unrecognized Tax Benefits Anticipated To Result In Net Decrease Of Unrecognized Tax Benefits Within 12 Months Of Balance Sheet Date Minimum	4,000,000
Unrecognized Tax Benefits Anticipated To Result In Net Decrease Of Unrecognized Tax Benefits Within 12 Months Of Balance Sheet Date Maximum	8,000,000
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities Portion Resulting From Noncash Audit Settlement		105,000,000
Reconciliation Of Unrecognized Tax Benefits Excluding Amounts Pertaining To Examined Tax Returns Roll Forward
Balance at January 1	511,000,000	555,000,000	590,000,000
Additions for current year tax positions	14,000,000	72,000,000	6,000,000
Additions for tax positions of prior years	51,000,000	7,000,000	80,000,000
Reductions for tax positions of prior years	(46,000,000)	(9,000,000)	(26,000,000)
Effects of foreign currency translation	(3,000,000)	6,000,000	(74,000,000)
Settlements	(67,000,000)	(104,000,000)	(18,000,000)
Lapse of statute of limitations	(23,000,000)	(16,000,000)	(3,000,000)
Balance at December 31	437,000,000	511,000,000	555,000,000
Internal Revenue Service IRS [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	1,700,000,000
Operating Loss Carryforwards Amount Related To Stock Option Deductions To Be Recognized In Apic	68,000,000
Foreign Country [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	4,600,000,000
State And Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	3,500,000,000
General Business [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward Amount	18,000,000
Federal Alternative Minimum Tax [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward Amount	5,000,000
Foreign Jurisdictions [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward Amount	37,000,000
Foreign Jurisdictions [Member] \| Year 2011 To 2013 [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward Amount	3,000,000
Foreign Jurisdictions [Member] \| Year 2014 To 2021 [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward Amount	15,000,000
Foreign Jurisdictions [Member] \| No Expiration [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward Amount	$ 19,000,000

The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards, before reduction for a valuation allowance.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to withholding tax reversals.

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The portion of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws that is related to Stock Option Deductions and will be recognized in APIC when realized

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Income tax benefits related to the tax status of operations in certain countries subject to reduced tax rates as a result of satisfying specific commitments regarding employment and capital investment

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Income tax benefits per share related to the tax status of operations in certain countries subject to reduced tax rates as a result of satisfying specific commitments regarding employment and capital investment.

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The maximum amount of unrecognized tax benefits anticipated to result in a net decrease of unrecognized tax benefits within 12 months of the balance sheet date.

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The decrease in unrecognized tax benefits pertaining to settlements with taxing authorities related to a non-cash audit settlement resulting in no tax expense or benefit

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The net amount of increases (decreases) in unrecognized tax benefits resulting from the effects of foreign currency translation

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The amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate, in the form of tax attributes that would warrant a full valuation allowance

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. This amount is the total of current and noncurrent accrued income taxes.

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer.

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The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable income (loss) from continuing operations.

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The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of foreign enacted tax law to the foreign taxable income (loss) from continuing operations.

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The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable income (loss) from continuing operations.

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The component of total income tax expense for the period comprised of the net change during the period in the entity's domestic deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the federally enacted tax law.

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The component of total income tax expense for the period comprised of the net change in the entity's net foreign deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of applicable enacted tax laws of countries other than the country of domicile.

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The component of total income tax expense for the period comprised of the net change in the entity's state and local deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the applicable enacted tax laws.

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The tax effect as of the balance sheet date of the amount of future tax deductions arising from capital losses in excess of statutory limitations in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization.

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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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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 sum of the tax effects as of the balance sheet date of the amount of the estimated future tax deductions arising from all employee compensation and benefits costs, which can only be deducted for tax purposes when the 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 all currently nondeductible expenses reflected in all reserves and accrued liabilities, which can only be deducted for tax purposes when relevant losses are realized or relevant obligations 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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 42, 43

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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.

+ References

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The amount as of the balance sheet date of the estimated future tax effects arising from unrealized gain on items included in other comprehensive income which will increase future taxable income when such gain is realized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 36
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-Subparagraph a

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The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of capital assets and the basis of capital assets computed in accordance with generally accepted accounting principles. The difference in basis, attributable to different capitalization of costs, depreciation, or amortization methodologies, will increase future taxable income when such basis difference is realized. Capital assets include but are not limited to assets such as land, real estate, leasehold improvements, machinery and equipment and furniture and fixtures.

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Number 210
-Section 08
-Paragraph h
-Subparagraph 2
-Article 4

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate shall be the regular tax rate if there are alternative tax systems.

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-Publisher FASB
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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in the valuation allowance for deferred tax assets.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the disposition of a business.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the difference between statutory income tax rates in foreign jurisdictions and the domestic federal statutory income tax rate recorded during the period.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy.

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- Definition

The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the repatriation of foreign earnings under enacted tax laws.

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- Definition

The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense (benefit), net of the federal tax benefit (expense) thereon, recorded during the period.

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- Definition

The portion of earnings (loss) from continuing operations before income taxes that is attributable to domestic operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Subparagraph 1(i)
-Article 4

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The portion of earnings (loss) from continuing operations before income taxes that is attributable to foreign operations, which is defined as income (loss) generated from operations located outside the entity's country of domicile.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Number 210
-Section 08
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- Definition

Sum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest.

+ References

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-Section 08
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- Definition

Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 10
-Article 9

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 109
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 5
-Subparagraph c
-Article 7

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 45
-Subparagraph a, b

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_IncomeTaxExpenseBenefitAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

+ References

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 48
-Subparagraph a

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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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Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 17
-Subparagraph a

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

Name:	us-gaap_TaxCreditCarryforwardLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The gross amount of unrecognized tax benefits (tax reductions recognized in financial reports but excluded from tax returns) pertaining to uncertain tax positions taken in tax returns as of the beginning balance sheet date, excluding amounts pertaining to examined tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a(1)

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a(3)

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

This element represents the amount of statutory penalties accrued as of the date of the statement of financial position for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
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-Paragraph 16

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph c

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

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- Definition

This element represents the recognized expense for the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties or, if not recognizing the expense in the period in which the tax return was initially filed, the expense shall be recognized in the period in which the enterprise's judgment about meeting the minimum statutory threshold changes.

+ References

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Balance Type:	debit
Period Type:	duration

- Definition

The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a(2)

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a(1)

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

This element represents the amount of interest expense accrued as of the date of the statement of financial position for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph c

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 15

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
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- Definition

This element represents interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity.

+ References

+ Details

Name:	us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph a(4)

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 48
-Paragraph 21
-Subparagraph b

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_ValuationAllowanceAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.

+ References

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Name:	us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration