Note 4. Other (income) expense
| Years Ended | |||||||||
| December 31, | |||||||||
| 2013 | 2012 | 2011 | |||||||
| Equity (income) loss of affiliated companies | $ | (36) | $ | (45) | $ | (51) | |||
| Gain on sale of available for sale investments | (195) | - | - | ||||||
| Loss (gain) on sale of non-strategic businesses and assets | 20 | (5) | (61) | ||||||
| Interest income | (69) | (58) | (58) | ||||||
| Foreign exchange | 34 | 36 | 50 | ||||||
| Other, net | 8 | 2 | 36 | ||||||
| $ | (238) | $ | (70) | $ | (84) | ||||
Gain on sale of available for sale investments for 2013 is due to $195 million of realized gain related to the sale of marketable equity securities. These securities (B/E Aerospace common stock), designated as available for sale, were obtained in conjunction with the sale of the Consumables Solutions business in July 2008. See Note 16, Financial Instruments and Fair Value Measures for further details.
Loss on sale of non-strategic business and assets for 2013 includes a pre-tax loss of approximately $28 million related to the pending divestiture of the Friction Materials business within our Transportation Systems segment. See Note 2, Acquisitions and Divestitures for further details.
Gain on sale of non-strategic businesses and assets for 2011 includes a $50 million pre-tax gain, $31 million net of tax, related to the divestiture of the automotive on-board sensor products business within our Automation and Control Solutions segment.
Other, net in 2011 includes a loss of $29 million resulting from early redemption of debt in the first quarter of 2011. See Note 14 Long-term Debt and Credit Agreements for further details.