[["millions except percentages", "2011", "2010", "2009"], ["net income", "$ 3292", "$ 2780", "$ 1890"], ["average equity", "$ 18171", "$ 17282", "$ 16058"], ["return on average commonshareholders 2019 equity", "18.1% ( 18.1 % )", "16.1% ( 16.1 % )", "11.8% ( 11.8 % )"]]