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USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
$Duration_1_1_2009_To_12_31_2009http://www.sec.gov/CIK0000093751duration2009-01-01T00:00:002009-12-31T00:00:00Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDfalsefalse1/1/2008 - 12/31/2008
USD ($)
USD ($) / shares
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-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 24
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 18, 19, 22
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r a debt security from the held-to-maturity category transferred into the available-for-sale category. Also includes the tax effect of unrealized gain or loss at the date of transfer for a debt security from the available-for-sale category transferred into the held-to-maturity category.Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Number 130
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/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
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-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 25
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falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse70000007falsefalsefalsefalsefalse3
truefalsefalse-10000000-10falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTax effect on the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses.Reference 1: http://www.xbrl.org/2003/role/present
ationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
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-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 25
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odic pension cost) is to be recorded as a separate component in other comprehensive income, before adjusting for tax effects. In a subsequent measurement, the elimination or adjustment to the amount of the minimum pension liability recorded in accumulated other comprehensive income is included in this line. Eliminated upon adoption of FAS 158.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 25
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 62
falsefalse39Consolidated Statement of Changes in Shareholders' Equity (Parenthetical) (USD $)MillionsUnKnownNoRoundingUnKnownfalsetrue
