Year Ended December 31, | ||||||||||||
Dollars in Millions | 2013 | 2012 | 2011 | |||||||||
Interest expense | $ | 199 | $ | 182 | $ | 145 | ||||||
Investment income | (104 | ) | (106 | ) | (91 | ) | ||||||
Provision for restructuring (See Note 7) | 226 | 174 | 116 | |||||||||
Litigation charges/(recoveries) | 20 | (45 | ) | 6 | ||||||||
Equity in net income of affiliates | (166 | ) | (183 | ) | (281 | ) | ||||||
Out-licensed intangible asset impairment | — | 38 | — | |||||||||
Gain on sale of product lines, businesses and assets | (2 | ) | (53 | ) | (37 | ) | ||||||
Other income received from alliance partners, net | (148 | ) | (312 | ) | (140 | ) | ||||||
Pension curtailments and settlements | 165 | 158 | 10 | |||||||||
Other | 15 | 67 | (62 | ) | ||||||||
Other (income)/expense | $ | 205 | $ | (80 | ) | $ | (334 | ) | ||||