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Consolidated Statement of Changes in Equity (Parenthetical) (USD $)
In Millions, except Per Share data, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Common stock
Dec. 31, 2013
Common stock
Stockholders' Equity Attributable to Parent $ 37,497 $ 36,889 $ 35,935
Dividends on common stock, per share (usd per share) $ 0.49