2.2.0.7 true Consolidated Statement of Common Shareholders' Equity (USD $) 00500 - Statement - Consolidated Statement of Common Shareholders' Equity true false In Millions, except Share data false false 1 USD true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 Unit14 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember false false us-gaap_CommonStockMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_CommonStockMember us-gaap_StatementEquityComponentsAxis explicitMember Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 3 USD true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember false false us-gaap_AdditionalPaidInCapitalMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_AdditionalPaidInCapitalMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 4 USD true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember false false us-gaap_RetainedEarningsMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_RetainedEarningsMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 5 USD true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember false false us-gaap_TreasuryStockMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_TreasuryStockMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 6 USD true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember false false ed_OtherChangesStockholdersEquityMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi ed_OtherChangesStockholdersEquityMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 7 USD true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember false false us-gaap_AccumulatedOtherComprehensiveIncomeMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_AccumulatedOtherComprehensiveIncomeMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 8 USD true false false false ed_CeconyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi ed_CeconyMember dei_LegalEntityAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 9 USD true false false false ed_CeconyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi ed_CeconyMember dei_LegalEntityAxis explicitMember false false us-gaap_CommonStockMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_CommonStockMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 10 USD true false false false ed_CeconyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi ed_CeconyMember dei_LegalEntityAxis explicitMember false false us-gaap_AdditionalPaidInCapitalMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_AdditionalPaidInCapitalMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 11 USD true false false false ed_CeconyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi ed_CeconyMember dei_LegalEntityAxis explicitMember false false us-gaap_RetainedEarningsMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_RetainedEarningsMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 12 USD true false false false ed_CeconyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi ed_CeconyMember dei_LegalEntityAxis explicitMember false false us-gaap_TreasuryStockMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_TreasuryStockMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 13 USD true false false false ed_CeconyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi ed_CeconyMember dei_LegalEntityAxis explicitMember false false ed_OtherChangesStockholdersEquityMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi ed_OtherChangesStockholdersEquityMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 14 USD true false false false ed_CeconyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi ed_CeconyMember dei_LegalEntityAxis explicitMember false false us-gaap_AccumulatedOtherComprehensiveIncomeMember us-gaap_StatementEquityComponentsAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_AccumulatedOtherComprehensiveIncomeMember us-gaap_StatementEquityComponentsAxis explicitMember Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 15 USD false false Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit14 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 5 BEGINNING BALANCE (in shares) at Dec. 31, 2008 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false true false false periodstartlabel instant 2009-01-01T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 273721686 273721686 true false false 3 false false false false 0 0   true false false 4 false false false false 0 0   true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0   true false false 7 false false false false 0 0 true false false 8 false false false false 0 0   true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0   true false false 11 false false false false 0 0   true false false 12 false false false false 0 0   true false false 13 false false false false 0 0   true false false 14 false false false false 0 0   true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 6 BEGINNING BALANCE at Dec. 31, 2008 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false true false false periodstartlabel instant 2009-01-01T00:00:00 0001-01-01T00:00:00 false 1 true true false false 9698000000 9698 true false false 2 true true false false 29000000 29 true false false 3 true true false false 4112000000 4112 true false false 4 true true false false 6685000000 6685 true false false 5 true true false false -1001000000 -1001 true false false 6 true true false false -60000000 -60 true false false 7 true true false false -67000000 -67 true false false 8 true true false false 8991000000 8991 true false false 9 true true false false 589000000 589 true false false 10 true true false false 3664000000 3664 true false false 11 true true false false 5780000000 5780 true false false 12 true true false false -962000000 -962 true false false 13 true true false false -60000000 -60 true false false 14 true true false false -20000000 -20 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 200000000 200 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 200000000 200 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 180000000 180 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 180000000 180 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 10 Common stock dividend 3 us-gaap_DividendsCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -162000000 -162 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false -162000000 -162 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -163000000 -163 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -163000000 -163 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 11 Cumulative preferred dividends 3 us-gaap_DividendsPreferredStock us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -3000000 -3 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -3000000 -3 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for preferred shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l false 12 Issuance of common shares-dividend reinvestment and employee stock plans (in shares) 3 ed_StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan ed false na duration Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan false false false false false false false false false false false terselabel false 1 false false false false 0 0   true false false 2 false true false false 532533 532533 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan No authoritative reference available. false 13 Issuance of common shares-dividend reinvestment and employee stock plans 3 ed_StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan ed false credit duration Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. false false false false false false false false false false false terselabel false 1 false true false false 20000000 20 true false false 2 false false false false 0 0 true false false 3 false true false false 20000000 20 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. No authoritative reference available. false 14 Other comprehensive income 3 us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1000000 1 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 1000000 1 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents Other Comprehensive Income (Loss), Before Tax, for the period. The pretax revenues, expenses, gains, and losses that under generally accepted accounting principles are included in comprehensive income, but excluded from net income. Includes the entity's proportionate share of an investee's equity adjustments for other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph e Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 22, 24, 121 false 15 ENDING BALANCE (in shares) at Mar. 31, 2009 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2009-03-31T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 274254219 274254219 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Mar. 31, 2009 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2009-03-31T00:00:00 0001-01-01T00:00:00 false 1 false true false false 9737000000 9737 true false false 2 false true false false 29000000 29 true false false 3 false true false false 4132000000 4132 true false false 4 false true false false 6703000000 6703 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -60000000 -60 true false false 7 false true false false -66000000 -66 true false false 8 false true false false 9025000000 9025 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3664000000 3664 true false false 11 false true false false 5814000000 5814 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -60000000 -60 true false false 14 false true false false -20000000 -20 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 5 BEGINNING BALANCE (in shares) at Dec. 31, 2008 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false true false false periodstartlabel instant 2009-01-01T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0   true false false 7 false false false false 0 0 false false false 8 false false false false 0 0   true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0   true false false 11 false false false false 0 0 false false false 12 false false false false 0 0   true false false 13 false false false false 0 0   true false false 14 false false false false 0 0   true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 6 BEGINNING BALANCE at Dec. 31, 2008 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false true false false periodstartlabel instant 2009-01-01T00:00:00 0001-01-01T00:00:00 false 1 false true false false 9698000000 9698 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -60000000 -60 true false false 7 false false false false 0 0 false false false 8 false true false false 8991000000 8991 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3664000000 3664 true false false 11 false false false false 0 0 false false false 12 false true false false -962000000 -962 true false false 13 false true false false -60000000 -60 true false false 14 false true false false -20000000 -20 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 675000000 675 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 false false false 8 false true false false 623000000 623 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 false false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 666000000 666 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 false false false 8 false true false false 615000000 615 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 false false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false true false false 666000000 666 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 15 ENDING BALANCE (in shares) at Sep. 30, 2009 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2009-09-30T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 false false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 false false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Sep. 30, 2009 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2009-09-30T00:00:00 0001-01-01T00:00:00 false 1 false true false false 9943000000 9943 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -60000000 -60 true false false 7 false false false false 0 0 false false false 8 false true false false 9118000000 9118 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3664000000 3664 true false false 11 false false false false 0 0 false false false 12 false true false false -962000000 -962 true false false 13 false true false false -60000000 -60 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 5 BEGINNING BALANCE (in shares) at Mar. 31, 2009 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false true false false periodstartlabel instant 2009-04-01T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 274254219 274254219 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 6 BEGINNING BALANCE at Mar. 31, 2009 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false true false false periodstartlabel instant 2009-04-01T00:00:00 0001-01-01T00:00:00 false 1 false true false false 9737000000 9737 true false false 2 false true false false 29000000 29 true false false 3 false true false false 4132000000 4132 true false false 4 false true false false 6703000000 6703 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -60000000 -60 true false false 7 false true false false -66000000 -66 true false false 8 false true false false 9025000000 9025 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3664000000 3664 true false false 11 false true false false 5814000000 5814 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -60000000 -60 true false false 14 false true false false -20000000 -20 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 139000000 139 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 139000000 139 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 150000000 150 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 150000000 150 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 10 Common stock dividend 3 us-gaap_DividendsCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -162000000 -162 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false -162000000 -162 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -163000000 -163 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -163000000 -163 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 11 Cumulative preferred dividends 3 us-gaap_DividendsPreferredStock us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -3 -3 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -3 -3 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for preferred shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l false 12 Issuance of common shares-dividend reinvestment and employee stock plans (in shares) 3 ed_StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan ed false na duration Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan false false false false false false false false false false false terselabel false 1 false false false false 0 0   true false false 2 false true false false 584916 584916 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan No authoritative reference available. false 13 Issuance of common shares-dividend reinvestment and employee stock plans 3 ed_StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan ed false credit duration Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. false false false false false false false false false false false terselabel false 1 false true false false 21000000 21 true false false 2 false false false false 0 0 true false false 3 false true false false 21000000 21 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. No authoritative reference available. false 14 Other comprehensive income 3 us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 2000000 2 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 2000000 2 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents Other Comprehensive Income (Loss), Before Tax, for the period. The pretax revenues, expenses, gains, and losses that under generally accepted accounting principles are included in comprehensive income, but excluded from net income. Includes the entity's proportionate share of an investee's equity adjustments for other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph e Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 22, 24, 121 false 15 ENDING BALANCE (in shares) at Jun. 30, 2009 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2009-06-30T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 274839135 274839135 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Jun. 30, 2009 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2009-06-30T00:00:00 0001-01-01T00:00:00 false 1 false true false false 9748000000 9748 true false false 2 false true false false 29000000 29 true false false 3 false true false false 4153000000 4153 true false false 4 false true false false 6691000000 6691 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -60000000 -60 true false false 7 false true false false -64000000 -64 true false false 8 false true false false 8998000000 8998 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3664000000 3664 true false false 11 false true false false 5787000000 5787 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -60000000 -60 true false false 14 false false false false 0 0 false false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 339000000 339 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 285000000 285 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 285000000 285 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 336000000 336 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 336000000 336 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 282000000 282 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false true false false 336000000 336 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 10 Common stock dividend 3 us-gaap_DividendsCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -162000000 -162 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false -162000000 -162 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -163000000 -163 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -163000000 -163 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 11 Cumulative preferred dividends 3 us-gaap_DividendsPreferredStock us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -3000000 -3 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -3000000 -3 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for preferred shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l false 12 Issuance of common shares-dividend reinvestment and employee stock plans (in shares) 3 ed_StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan ed false na duration Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan false false false false false false false false false false false terselabel false 1 false false false false 0 0 true false false 2 false true false false 520041 520041 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan No authoritative reference available. false 13 Issuance of common shares-dividend reinvestment and employee stock plans 3 ed_StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan ed false credit duration Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. false false false false false false false false false false false terselabel false 1 false true false false 20000000 20 true false false 2 false false false false 0 0 true false false 3 false true false false 20000000 20 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. No authoritative reference available. false 14 Other comprehensive income 3 us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1000000 1 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 1000000 1 true false false 8 false true false false 1000000 1 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false true false false 1000000 1 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents Other Comprehensive Income (Loss), Before Tax, for the period. The pretax revenues, expenses, gains, and losses that under generally accepted accounting principles are included in comprehensive income, but excluded from net income. Includes the entity's proportionate share of an investee's equity adjustments for other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph e Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 22, 24, 121 false 15 ENDING BALANCE (in shares) at Sep. 30, 2009 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2009-09-30T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0 true false false 2 false true false false 275359176 275359176 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Sep. 30, 2009 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2009-09-30T00:00:00 0001-01-01T00:00:00 false 1 false true false false 9943000000 9943 true false false 2 false true false false 29000000 29 true false false 3 false true false false 4173000000 4173 true false false 4 false true false false 6865000000 6865 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -60000000 -60 true false false 7 false true false false -63000000 -63 true false false 8 false true false false 9118000000 9118 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3664000000 3664 true false false 11 false true false false 5906000000 5906 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -60000000 -60 true false false 14 false true false false -19000000 -19 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 5 BEGINNING BALANCE (in shares) at Dec. 31, 2009 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false true false false periodstartlabel instant 2010-01-01T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 281123741 281123741 true false false 3 false false false false 0 0   true false false 4 false false false false 0 0   true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0   true false false 11 false false false false 0 0   true false false 12 false false false false 0 0   true false false 13 false false false false 0 0   true false false 14 false false false false 0 0   true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 6 BEGINNING BALANCE at Dec. 31, 2009 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false true false false periodstartlabel instant 2010-01-01T00:00:00 0001-01-01T00:00:00 false 1 false true false false 10249000000 10249 true false false 2 false true false false 30000000 30 true false false 3 false true false false 4420000000 4420 true false false 4 false true false false 6904000000 6904 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -62000000 -62 true false false 7 false true false false -42000000 -42 true false false 8 false true false false 9347000000 9347 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3877000000 3877 true false false 11 false true false false 5909000000 5909 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -62000000 -62 true false false 14 false true false false -4000000 -4 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 246000000 246 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 246000000 246 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 226000000 226 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 226000000 226 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 9 Capital contribution from parent 3 ed_CapitalContributionsFromParent ed false credit duration Capital contributions from parent. false false false false false false false false false false false terselabel false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 12000000 12 true false false 9 false false false false 0 0 true false false 10 false true false false 12000000 12 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Capital contributions from parent. No authoritative reference available. false 10 Common stock dividend 3 us-gaap_DividendsCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -167000000 -167 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false -167000000 -167 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -167000000 -167 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -167000000 -167 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 11 Cumulative preferred dividends 3 us-gaap_DividendsPreferredStock us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -3000000 -3 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -3000000 -3 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for preferred shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l false 12 Issuance of common shares-dividend reinvestment and employee stock plans (in shares) 3 ed_StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan ed false na duration Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan false false false false false false false false false false false terselabel false 1 false false false false 0 0   true false false 2 false true false false 647731 647731 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan No authoritative reference available. false 13 Issuance of common shares-dividend reinvestment and employee stock plans 3 ed_StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan ed false credit duration Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. false false false false false false false false false false false terselabel false 1 false true false false 28000000 28 true false false 2 false false false false 0 0 true false false 3 false true false false 28000000 28 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. No authoritative reference available. false 14 Other comprehensive income 3 us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 3000000 3 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 3000000 3 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents Other Comprehensive Income (Loss), Before Tax, for the period. The pretax revenues, expenses, gains, and losses that under generally accepted accounting principles are included in comprehensive income, but excluded from net income. Includes the entity's proportionate share of an investee's equity adjustments for other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph e Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 22, 24, 121 false 15 ENDING BALANCE (in shares) at Mar. 31, 2010 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2010-03-31T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 281771472 281771472 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Mar. 31, 2010 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2010-03-31T00:00:00 0001-01-01T00:00:00 false 1 false true false false 10339000000 10339 true false false 2 false true false false 30000000 30 true false false 3 false true false false 4448000000 4448 true false false 4 false true false false 6963000000 6963 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -62000000 -62 true false false 7 false true false false -39000000 -39 true false false 8 false true false false 9435000000 9435 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3889000000 3889 true false false 11 false true false false 5985000000 5985 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -62000000 -62 true false false 14 false true false false -4000000 -4 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 5 BEGINNING BALANCE (in shares) at Dec. 31, 2009 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false true false false periodstartlabel instant 2010-01-01T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 false false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 false false false 11 false false false false 0 0 false false false 12 false false false false 0 0   true false false 13 false false false false 0 0   true false false 14 false false false false 0 0   true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 6 BEGINNING BALANCE at Dec. 31, 2009 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false true false false periodstartlabel instant 2010-01-01T00:00:00 0001-01-01T00:00:00 false 1 false true false false 10249000000 10249 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -62000000 -62 true false false 7 false false false false 0 0 false false false 8 false true false false 9347000000 9347 true false false 9 false true false false 589000000 589 true false false 10 false false false false 0 0 false false false 11 false false false false 0 0 false false false 12 false true false false -962000000 -962 true false false 13 false true false false -62000000 -62 true false false 14 false true false false -4000000 -4 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 768000000 768 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 false false false 8 false true false false 717000000 717 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 false false false 11 false false false false 0 0 false false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 759000000 759 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 false false false 8 false true false false 709000000 709 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 false false false 11 false false false false 0 0 false false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false true false false 759000000 759 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 15 ENDING BALANCE (in shares) at Sep. 30, 2010 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2010-09-30T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 false false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 false false false 11 false false false false 0 0 false false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Sep. 30, 2010 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2010-09-30T00:00:00 0001-01-01T00:00:00 false 1 false true false false 10630000000 10630 true false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -62000000 -62 true false false 7 false false false false 0 0 false false false 8 false true false false 9591000000 9591 true false false 9 false true false false 589000000 589 true false false 10 false false false false 0 0 false false false 11 false false false false 0 0 false false false 12 false true false false -962000000 -962 true false false 13 false true false false -62000000 -62 true false false 14 false true false false -4000000 -4 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 5 BEGINNING BALANCE (in shares) at Mar. 31, 2010 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false true false false periodstartlabel instant 2010-04-01T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 281771472 281771472 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 6 BEGINNING BALANCE at Mar. 31, 2010 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false true false false periodstartlabel instant 2010-04-01T00:00:00 0001-01-01T00:00:00 false 1 false true false false 10339000000 10339 true false false 2 false true false false 30000000 30 true false false 3 false true false false 4448000000 4448 true false false 4 false true false false 6963000000 6963 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -62000000 -62 true false false 7 false true false false -39000000 -39 true false false 8 false true false false 9435000000 9435 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3889000000 3889 true false false 11 false true false false 5985000000 5985 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -62000000 -62 true false false 14 false true false false -4000000 -4 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 138000000 138 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 138000000 138 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 183000000 183 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 183000000 183 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 9 Capital contribution from parent 3 ed_CapitalContributionsFromParent ed false credit duration Capital contributions from parent. false false false false false false false false false false false terselabel false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 12000000 12 true false false 9 false false false false 0 0 true false false 10 false true false false 12000000 12 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Capital contributions from parent. No authoritative reference available. false 10 Common stock dividend 3 us-gaap_DividendsCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -168000000 -168 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false -168000000 -168 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -168000000 -168 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -168000000 -168 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 11 Cumulative preferred dividends 3 us-gaap_DividendsPreferredStock us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false false false false 0 0   true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -3000000 -3 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -3000000 -3 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for preferred shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l false 12 Issuance of common shares-dividend reinvestment and employee stock plans (in shares) 3 ed_StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan ed false na duration Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan false false false false false false false false false false false terselabel false 1 false false false false 0 0   true false false 2 false true false false 555964 555964 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan No authoritative reference available. false 13 Issuance of common shares-dividend reinvestment and employee stock plans 3 ed_StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan ed false credit duration Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. false false false false false false false false false false false terselabel false 1 false true false false 25000000 25 true false false 2 false false false false 0 0 true false false 3 false true false false 25000000 25 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. No authoritative reference available. false 14 Other comprehensive income 3 us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1000000 1 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 1000000 1 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents Other Comprehensive Income (Loss), Before Tax, for the period. The pretax revenues, expenses, gains, and losses that under generally accepted accounting principles are included in comprehensive income, but excluded from net income. Includes the entity's proportionate share of an investee's equity adjustments for other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph e Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 22, 24, 121 false 15 ENDING BALANCE (in shares) at Jun. 30, 2010 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2010-06-30T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 282327436 282327436 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Jun. 30, 2010 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2010-06-30T00:00:00 0001-01-01T00:00:00 false 1 false true false false 10380000000 10380 true false false 2 false true false false 30000000 30 true false false 3 false true false false 4473000000 4473 true false false 4 false true false false 6978000000 6978 true false false 5 false true false false -1001000000 -1001 true false false 6 false true false false -62000000 -62 true false false 7 false true false false -38000000 -38 true false false 8 false true false false 9414000000 9414 true false false 9 false true false false 589000000 589 true false false 10 false true false false 3901000000 3901 true false false 11 false true false false 5952000000 5952 true false false 12 false true false false -962000000 -962 true false false 13 false true false false -62000000 -62 true false false 14 false true false false -4000000 -4 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 7 Net Income 3 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 353000000 353 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 335000000 335 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 335000000 335 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 false 8 Net income for common stock 3 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 350000000 350 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false 350000000 350 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 332000000 332 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false true false false 350000000 350 false false false xbrli:monetaryItemType monetary Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 9 false 9 Capital contribution from parent 3 ed_CapitalContributionsFromParent ed false credit duration Capital contributions from parent. false false false false false false false false false false false terselabel false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false 12000000 12 true false false 9 false false false false 0 0 true false false 10 false true false false 12000000 12 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Capital contributions from parent. No authoritative reference available. false 10 Common stock dividend 3 us-gaap_DividendsCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -168000000 -168 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false true false false -168000000 -168 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -167000000 -167 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -167000000 -167 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 false 11 Cumulative preferred dividends 3 us-gaap_DividendsPreferredStock us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false false false false 0 0 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false true false false -3000000 -3 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false -3000000 -3 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate cash, stock, and paid-in-kind dividends declared for preferred shareholders during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph l false 12 Issuance of common shares-dividend reinvestment and employee stock plans (in shares) 3 ed_StockIssuedDuringPeriodSharesDividendReinvestmentAndEmployeeStockPurchasePlan ed false na duration Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan false false false false false false false false false false false terselabel false 1 false false false false 0 0   true false false 2 false true false false 1487598 1487598 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Stock Issued During Period, Shares, Dividend reinvestment and Employee Stock Purchase Plan No authoritative reference available. false 13 Issuance of common shares-dividend reinvestment and employee stock plans 3 ed_StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlan ed false credit duration Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. false false false false false false false false false false false terselabel false 1 false true false false 67000000 67 true false false 2 false false false false 0 0 true false false 3 false true false false 1000000 1 true false false 4 false true false false 66000000 66 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Value of stock issued as a result of dividend reinvestment and employee stock purchase plan recorded above par value. No authoritative reference available. false 14 Other comprehensive income 3 us-gaap_OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1000000 1 true false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 1000000 1 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents Other Comprehensive Income (Loss), Before Tax, for the period. The pretax revenues, expenses, gains, and losses that under generally accepted accounting principles are included in comprehensive income, but excluded from net income. Includes the entity's proportionate share of an investee's equity adjustments for other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph e Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 22, 24, 121 false 15 ENDING BALANCE (in shares) at Sep. 30, 2010 3 ed_CommonStockEquityShares ed false na instant Common Stock Equity Shares false false false true false false false false false true false periodendlabel instant 2010-09-30T00:00:00 0001-01-01T00:00:00 false 1 false false false false 0 0   true false false 2 false true false false 283815034 283815034 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false true false false 23210700 23210700 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 235488094 235488094 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 false false false xbrli:sharesItemType shares Common Stock Equity Shares No authoritative reference available. false 16 ENDING BALANCE at Sep. 30, 2010 3 ed_CommonStockEquity ed false credit instant Total value of common stock equity false false false true false false false false false true false periodendlabel instant 2010-09-30T00:00:00 0001-01-01T00:00:00 false 1 true true false false 10630000000 10630 true false false 2 true true false false 31000000 31 true false false 3 true true false false 4539000000 4539 true false false 4 true true false false 7160000000 7160 true false false 5 true true false false -1001000000 -1001 true false false 6 true true false false -62000000 -62 true false false 7 true true false false -37000000 -37 true false false 8 true true false false 9591000000 9591 true false false 9 true true false false 589000000 589 true false false 10 true true false false 3913000000 3913 true false false 11 true true false false 6117000000 6117 true false false 12 true true false false -962000000 -962 true false false 13 true true false false -62000000 -62 true false false 14 true true false false -4000000 -4 true false false 15 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total value of common stock equity No authoritative reference available. false 15 77 false Millions NoRounding UnKnown false true