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Other Income and Expense | 3 Months Ended
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Jun. 30, 2012
OTHER INCOME AND EXPENSE | 13. OTHER INCOME (EXPENSE) The components of other income for the three and six months ended June 30, 2012 and 2011 were as follows:
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2012 |  | 2011 |  | 2012 |  | 2011
|  | (in millions)
Gain on sale of assets |  | $ | 1 |  | $ | 14 |  | $ | 3 |  | $ | 16
Other |  |  | 14 |  |  | 20 |  |  | 30 |  |  | 34
Total other income |  | $ | 15 |  | $ | 34 |  | $ | 33 |  | $ | 50
Other income generally includes gains on asset sales and extinguishments of liabilities, favorable judgments on contingencies and income from miscellaneous transactions. Other income of $15 million for the three months ended June 30, 2012 was primarily related to the receipt of insurance proceeds related to a claim in P anama for damage to the Esti tunnel. O ther income of $34 million for the three months ended June 30, 2011 was primarily related to the gain on sale of mineral rights and land in Indiana at IPL, and the receipt of insurance proceeds related to a claim in Panama for damage associated with the Esti tunnel. Other income of $33 million for the six months ended June 30, 2012 was primarily related to the receipt of insurance proceeds as described above, the re leas e of a heavy fuel oil stock at Ballylumford and the receipt of dividends from a cost method investment at Gener. O ther income of $50 million for the six months ended June 30, 2011 was primarily related to the gain on sale at IPL and receipt of insurance proceeds as described above. The components of other expense for the three and six months ended June 30, 2012 and 2011 were as follows:
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2012 |  | 2011 |  | 2012 |  | 2011
|  | (in millions)
Loss on sale and disposal of assets |  | $ | 11 |  | $ | 16 |  | $ | 35 |  | $ | 26
Loss on extinguishment of debt |  |  | - |  |  | 15 |  |  | - |  |  | 15
Other |  |  | 4 |  |  | 4 |  |  | 9 |  |  | 9
Total other expense |  | $ | 15 |  | $ | 35 |  | $ | 44 |  | $ | 50
Other expense generally includes losses on asset sales, losses on the extinguishment of debt, contingencies and losses from miscellaneous transactions. Other expense for the three months ended June 30, 2012 of $15 million was primarily comprised of losses on the disposal of assets at Eletropaulo. Other expense for the three months ended June 30, 2011 of $35 million was primarily comprised of a loss related to the early retirement of senior notes due in 2011 at IPALCO, and a loss on disposal of assets at Eletropaulo. Other expense of $44 million for the six months ended June 30, 2012 was primarily due t o the loss on disposal of assets at Eletropaulo. Other expense of $50 million for the six months ended June 30, 2011 included early retirement of senior notes due in 2011 at IPALCO and loss on disposal of assets at Eletropaulo, as discussed above.

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 3, 6, 7, 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3,6,7,9) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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