EXELON CORP XBRL Taxonomy Presentation Networks

-Network: (11 - Statement - Consolidated Statements of Operations and Comprehensive Income)
-Income Statement [Abstract] {ID1}
-Statement [Table] {ID2}
-Statement [Line Items] {ID3}
Operating revenues {ID4}
-Operating expenses {ID5}
Purchased power {ID6}
Fuel {ID7}
Operating and maintenance {ID8}
Operating and maintenance for regulatory required programs {ID9}
Depreciation and amortization {ID10}
Taxes other than income {ID11}
Total operating expenses {ID12}
Operating income {ID13}
-Other income and deductions {ID14}
Interest expense {ID15}
Interest expense to affiliates, net {ID16}
Equity in losses of unconsolidated affiliates and investments {ID17}
Other, net {ID18}
Total other income and deductions {ID19}
Income from continuing operations before income taxes {ID20}
Income taxes {ID21}
Income from continuing operations {ID22}
-Discontinued operations {ID23}
Loss from discontinued operations (net of taxes of $0, $0, $0 and $0 for the three and six months ended June 30, 2009 and 2008, respectively) {ID24}
Loss on disposal of discontinued operations (net of taxes of $0, $0, $0 and $(1) for the three and six months ended June 30, 2009 and 2008, respectively) {ID25}
Loss from discontinued operations, net {ID26}
Net income {ID27}
-Other comprehensive income (loss), net of income taxes {ID28}
-Pension and non-pension postretirement benefit plans: {ID29}
Prior service benefit reclassified to periodic benefit cost {ID30}
Actuarial loss reclassified to periodic cost {ID31}
Transition obligation reclassified to periodic cost {ID32}
Pension and non-pension postretirement benefit plans valuation adjustment {ID33}
Change in unrealized gain (loss) on cash flow hedges {ID34}
-Change in unrealized gain on marketable securities {ID35}
Other comprehensive income (loss) {ID36}
Comprehensive income {ID37}
-Average shares of common stock outstanding: {ID38}
Basic {ID39}
Diluted {ID40}
-Earnings per average common share - basic: {ID41}
Income from continuing operations {ID42}
-Loss from discontinued operations {ID43}
Net income {ID44}
-Earnings per average common share - diluted: {ID45}
Income from continuing operations {ID46}
-Loss from discontinued operations {ID47}
Net income {ID48}
Dividends per common share {ID49}
-Network: (12 - Statement - Consolidated Statements of Operations and Comprehensive Income (Parenthetical))
-Income Statement [Abstract] {ID50}
-Statement [Table] {ID51}
-Statement [Line Items] {ID52}
Loss from discontinued operations, taxes {ID53}
Loss on disposal of discontinued operations, taxes {ID54}
-Network: (13 - Statement - Consolidated Statements of Cash Flows)
-Statement of Cash Flows [Abstract] {ID55}
-Statement [Table] {ID56}
-Statement [Line Items] {ID57}
-Cash flows from operating activities {ID58}
Net income {ID59}
-Adjustments to reconcile net income to net cash flows provided by operating activities: {ID60}
Depreciation, amortization and accretion, including nuclear fuel amortization {ID61}
Impairment of long-lived assets {ID62}
Deferred income taxes and amortization of investment tax credits {ID63}
Net fair value changes related to derivatives and nuclear decommissioning trust funds {ID64}
Other non-cash operating activities {ID65}
-Changes in assets and liabilities: {ID66}
Accounts receivable {ID67}
Inventories {ID68}
Accounts payable, accrued expenses and other current liabilities {ID69}
Counterparty collateral received (posted), net {ID70}
Income taxes {ID71}
Restricted cash {ID72}
Pension and non-pension postretirement benefit contributions {ID73}
Other assets and liabilities {ID74}
Net cash flows provided by operating activities {ID75}
-Cash flows from investing activities {ID76}
Capital expenditures {ID77}
Proceeds from nuclear decommissioning trust fund sales {ID78}
Investment in nuclear decommissioning trust funds {ID79}
Change in restricted cash {ID80}
Other investing activities {ID81}
Net cash flows used in investing activities {ID82}
-Cash flows from financing activities {ID83}
Issuance of long-term debt {ID84}
Retirement of long-term debt {ID85}
Retirement of long-term debt to financing affiliates {ID86}
Change in short-term debt {ID87}
Dividends paid on common stock {ID88}
Proceeds from employee stock plans {ID89}
Purchase of treasury stock {ID90}
Purchase of forward contract in relation to certain treasury stock {ID91}
Other financing activities {ID92}
Net cash flows (used in) provided by financing activities {ID93}
Increase in cash and cash equivalents {ID94}
Cash and cash equivalents at beginning of period {ID95}
Cash and cash equivalents at end of period {ID96}
-Network: (14 - Statement - Consolidated Balance Sheets)
-Statement of Financial Position [Abstract] {ID97}
-Statement [Table] {ID98}
-Statement [Line Items] {ID99}
-ASSETS {ID100}
-Current assets {ID101}
Cash and cash equivalents {ID102}
Restricted cash and investments {ID103}
-Accounts receivable, net {ID104}
Customer {ID105}
Other {ID106}
Mark-to-market derivative assets {ID107}
-Inventories, net {ID108}
Fossil fuel {ID109}
Materials and supplies {ID110}
Other {ID111}
Total current assets {ID112}
Property, plant and equipment, net {ID113}
-Deferred debits and other assets {ID114}
Regulatory assets {ID115}
Nuclear decommissioning trust funds {ID116}
Investments {ID117}
Investments in affiliates {ID118}
Goodwill {ID119}
Mark-to-market derivative assets {ID120}
Other {ID121}
Total deferred debits and other assets {ID122}
Total assets {ID123}
-LIABILITIES AND EQUITY {ID124}
-Current liabilities {ID125}
Short-term borrowings {ID126}
Long-term debt due within one year {ID127}
Long-term debt to PECO Energy Transition Trust due within one year {ID128}
Accounts payable {ID129}
Mark-to-market derivative liabilities {ID130}
Accrued expenses {ID131}
Deferred income taxes {ID132}
Other {ID133}
Total current liabilities {ID134}
Long-term debt {ID135}
Long-term debt to PECO Energy Transition Trust {ID136}
Long-term debt to other financing trusts {ID137}
-Deferred credits and other liabilities {ID138}
Deferred income taxes and unamortized investment tax credits {ID139}
Asset retirement obligations {ID140}
Pension obligations {ID141}
Non-pension postretirement benefit obligations {ID142}
Spent nuclear fuel obligation {ID143}
Regulatory liabilities {ID144}
Mark-to-market derivative liabilities {ID145}
Other {ID146}
Total deferred credits and other liabilities {ID147}
Total liabilities {ID148}
-Commitments and contingencies {ID149}
Preferred securities of subsidiary {ID150}
-Shareholders' equity {ID151}
Common stock (No par value, 2,000 shares authorized, 659 and 658 shares outstanding at June 30, 2009 and December 31, 2008, respectively) {ID152}
Treasury stock, at cost (35 and 35 shares held at June 30, 2009 and December 31, 2008, respectively) {ID153}
Retained earnings {ID154}
Accumulated other comprehensive loss, net {ID155}
Total shareholders' equity {ID156}
Total liabilities and shareholders' equity {ID157}
-Network: (15 - Statement - Consolidated Balance Sheets (Parenthetical))
-Statement of Financial Position [Abstract] {ID158}
-Statement [Table] {ID159}
-Statement [Line Items] {ID160}
Common stock, par value {ID161}
Common stock, shares authorized {ID162}
Common stock, shares outstanding {ID163}
Treasury stock, shares held {ID164}
-Network: (16 - Statement - Consolidated Statement of Changes in Equity)
-Statement of Stockholders' Equity [Abstract] {ID165}
-Statement [Table] {ID166}
-Statement, Equity Components [Axis] {ID167}
-Equity Component [Domain] {ID168}
Common Stock {ID169}
Treasury Stock {ID170}
Retained Earnings {ID171}
Accumulated Other Comprehensive Income (Loss) {ID172}
-Statement [Line Items] {ID173}
Accumulated Other Comprehensive Income (Loss) {ID174}
Beginning Balance {ID175}
Long-term incentive plan activity {ID176}
Ending Balance {ID177}
Beginning Balance {ID178}
Net income {ID179}
Long-term incentive plan activity {ID180}
Common stock dividends declared {ID181}
Other comprehensive income, net of income taxes of $262 {ID182}
Ending Balance {ID183}
-Network: (17 - Statement - Consolidated Statement of Changes in Equity (Parenthetical))
-Statement of Stockholders' Equity [Abstract] {ID184}
-Statement [Table] {ID185}
-Statement, Equity Components [Axis] {ID186}
-Equity Component [Domain] {ID187}
Common Stock {ID188}
Treasury Stock {ID189}
Retained Earnings {ID190}
Accumulated Other Comprehensive Income (Loss) {ID191}
-Statement [Line Items] {ID192}
Other comprehensive income, income taxes {ID193}
-Network: (18 - Disclosure - Combined Notes to Consolidated Financial Statements)
-Notes to Financial Statements [Abstract] {ID194}
1. Basis of Presentation (Exelon, Generation, ComEd and PECO) {ID195}
2. New Accounting Pronouncements (Exelon, Generation, ComEd and PECO) {ID196}
3. Regulatory Issues (Exelon, Generation, ComEd and PECO) {ID197}
4. Property Plant and Equipment (Exelon and Generation) {ID198}
5. Intangible Assets (Exelon, Generation, ComEd and PECO) {ID199}
6. Fair Value of Assets and Liabilities (Exelon, Generation, ComEd and PECO) {ID200}
7. Debt and Credit Agreements (Exelon, Generation, ComEd and PECO) {ID201}
8. Derivative Financial Instruments (Exelon, Generation, ComEd and PECO) {ID202}
9. Retirement Benefits (Exelon, Generation, ComEd and PECO) {ID203}
10. Severance Accounting (Exelon, Generation, ComEd and PECO) {ID204}
11. Income Taxes (Exelon, Generation, ComEd and PECO) {ID205}
12. Asset Retirement Obligations and Spent Nuclear Fuel Storage (Exelon and Generation) {ID206}
13. Earnings Per Share and Equity (Exelon) {ID207}
14. Commitments and Contingencies (Exelon, Generation, ComEd and PECO) {ID208}
15. Supplemental Financial Information (Exelon, Generation, ComEd and PECO) {ID209}
16. Segment Information (Exelon, Generation, ComEd and PECO) {ID210}
17. Related-Party Transactions (Exelon, Generation, ComEd and PECO) {ID211}
18. Subsequent Events (Exelon and PECO) {ID212}
-Network: (19 - Disclosure - Document Information)
-Document Information [Text Block] {ID213}
Document Type {ID214}
Amendment Flag {ID215}
Amendment Description {ID216}
Document Period End Date {ID217}
-Network: (20 - Disclosure - Entity Information)
-Entity [Text Block] {ID218}
Trading Symbol {ID219}
Entity Registrant Name {ID220}
Entity Central Index Key {ID221}
Current Fiscal Year End Date {ID222}
Entity Well-known Seasoned Issuer {ID223}
Entity Current Reporting Status {ID224}
Entity Voluntary Filers {ID225}
Entity Filer Category {ID226}
Entity Common Stock, Shares Outstanding {ID227}
Entity Public Float {ID228}