Related-Party Transactions	12 Months Ended
Related-Party Transactions	Dec. 31, 2011
Related-Party Transactions
Related-Party Transactions	Related Party Transactions EMMT Agreements Homer City has entered into a master purchase, sale and services agreement with EMMT, pursuant to which EMMT arranges for purchases and sales of the following products, including related services: (i) electric energy and capacity; (ii) fuel oil; and (iii) emission allowances. Homer City compensates EMMT with respect to these transactions and reimburses EMMT for brokers fees, taxes, and other reasonably incurred direct out-of-pocket expenses. Payment for these services is due within 30 days of billing. The net fees earned by EMMT were less than $1 million for each of the years ended December 31, 2011, 2010 and 2009. EMMT prepays Homer City in advance for the full month's expected power generation. As a result of the accelerated payments, Homer City had liabilities to EMMT of $38 million and $45 million at December 31, 2011 and 2010, respectively, for products paid for by EMMT but not yet delivered by Homer City. Homer City entered into several transactions through EMMT for the purchase or sale of SO₂ and NO_x allowances. All transactions were completed at the market price on the date of the transaction. Homer City received (paid) $0.4 million, $(5) million and $1 million during 2011, 2010 and 2009, respectively, for net sales (purchases) of SO₂ and NO_x allowances. Affiliate Financing Homer City obtained financing from Edison Mission Finance in connection with its acquisition of the Homer City plant. For further discussion, see Note 4—Long-Term Debt. Services Agreements with EME and Edison International Certain administrative services such as payroll, employee benefit programs, insurance, and information technology are shared among all affiliates of Edison International and the costs of these corporate support services are allocated to all affiliates. The cost of services provided by Edison International and EME, including those related to Homer City, are allocated based on one of the following formulas: percentage of the time worked, equity in investment and advances, number of employees, or multi-factor (operating revenues, operating expenses, total assets and total employees). Homer City participates in a common payroll and benefit program with all Edison International employees. In addition, Homer City is billed for any direct labor and out-of-pocket expenses for services directly requested for the benefit of the partnership. Homer City believes the allocation methodologies are reasonable. Homer City made reimbursements for the cost of these programs and other services totaling $6 million, $8 million and $9 million for the years ended December 31, 2011, 2010 and 2009, respectively. Homer City had a net payable of $0.3 million and $1 million at December 31, 2011 and 2010, respectively, related to these agreements. Homer City participates in the insurance program of Edison International, including property, general liability, workers compensation and various other specialty policies. Homer City's insurance premiums are generally based on its share of risk related to each policy. In connection with the property insurance program, a portion of the risk is reinsured by a captive insurance subsidiary of Edison International. Management and Administration Agreement with Midwest Generation EME, LLC Homer City and Midwest Generation EME entered into a management and administration agreement pursuant to which Midwest Generation EME charges Homer City for management and administrative services. Actual costs billable under this agreement for each of the years ended December 31, 2011, 2010 and 2009 were $2 million. Homer City had a payable of $0.3 million and $0.2 million at December 31, 2011 and 2010, respectively, due to Midwest Generation EME related to this agreement.

The entire disclosure for related party transactions, including the nature of the relationship(s), a description of the transactions, the amount of the transactions, the effects of any change in the method of establishing the terms of the transaction from the previous period, stated interest rate, expiration date, terms and manner of settlement per the agreement with the related party, and amounts due to or from related parties. If the entity and one or more other entities are under common ownership or management control and this control affects the operating results or financial position, disclosure includes the nature of the control relationship even if there are no transactions between the entities. Disclosure may also include the aggregate amount of current and deferred tax expense for each statement of earnings presented where the entity is a member of a group that files a consolidated tax return, the amount of any tax related balances due to or from affiliates as of the date of each statement of financial position presented, the principal provisions of the method by which the consolidated amount of current and deferred tax expense is allocated to the members of the group and the nature and effect of any changes in that method. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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+ Details

EME HOMER CITY GENERATION LP 10-K