($ in millions) | 2013 | 2012 | 2011 | |||||||||
Gain on sale or redemption of non-operating assets, net: | ||||||||||||
Sale or Redemption of Simon Property Group, L.P. (SPG) REIT units | $ | (24 | ) | $ | (200 | ) | $ | — | ||||
Sale of CBL & Associates Properties, Inc. (CBL) REIT shares | — | (15 | ) | — | ||||||||
Sale of leveraged lease assets | — | (28 | ) | — | ||||||||
Sale of investments in joint ventures | (85 | ) | (151 | ) | — | |||||||
Sale of non-operating assets | (23 | ) | (3 | ) | — | |||||||
Net gain on sale or redemption of non-operating assets | (132 | ) | (397 | ) | — | |||||||
Dividend income from REITs | (1 | ) | (6 | ) | (10 | ) | ||||||
Investment income from joint ventures | (6 | ) | (11 | ) | (13 | ) | ||||||
Net gain from sale of operating assets | (17 | ) | — | (6 | ) | |||||||
Store impairments | 18 | 26 | 58 | |||||||||
Intangible asset impairment | 9 | — | — | |||||||||
Operating asset impairments | — | 60 | — | |||||||||
Other | (26 | ) | 4 | (8 | ) | |||||||
Real estate and other (income)/expense, net | $ | (155 | ) | $ | (324 | ) | $ | 21 |