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Common Stock and Stock Plans (Tables)
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12 Months Ended |
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Dec. 31, 2012
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| Common Stock and Stock Plans (Tables) [Abstract] |
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| Reserved, Issued and Authorized Common Stock |
| | | | | | | | Number of shares | | Dividend reinvestment and | | | | common stock purchase plans | 4,818,377 | | Director plans | 1,215,481 | | Stock plans (1) | 652,061,838 | | Convertible securities and warrants | 104,944,767 | | | Total shares reserved | 763,040,463 | | Shares issued | 5,481,811,474 | | Shares not reserved | 2,755,148,063 | | | Total shares authorized | 9,000,000,000 | | | | | |
- Includes employee options, restricted shares and restricted share rights, 401(k), profit sharing and compensation deferral plans.
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| Components of Stock Incentive Compensation Expense and Related Recognized Tax Benefit |
| | | | | | | | | | | | | | | | | | | | | | | | | | | Year ended December 31, | | (in millions) | | 2012 | 2011 | 2010 | | RSRs | $ | 435 | 338 | 252 | | Performance shares | | 112 | 128 | 66 | | Stock options | | 13 | 63 | 118 | | | Total stock incentive compensation | | | | | | | | expense | $ | 560 | 529 | 436 | | Related recognized tax benefit | $ | 211 | 200 | 165 | | | | | | | | | | | | | | | | | | | | |
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| Summary of RSRs and Restricted Share Awards |
| | | | | | | | | | | | | | | | | | Weighted- | | | | | | | | | average | | | | | | | | | grant-date | | | | | | | Number | | fair value | | Nonvested at January 1, 2012 | 39,280,129 | | $ | 28.81 | | Granted | 19,766,280 | | | 31.49 | | Vested | (2,620,424) | | | 28.53 | | Canceled or forfeited | (1,138,648) | | | 29.10 | | Nonvested at December 31, 2012 | 55,287,337 | | | 29.78 | | | | | | | | | | |
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| Summary of Performance Awards |
| | | | | | | | | | | | | | | | | | Weighted- | | | | | | | | | average | | | | | | | | | grant date | | | | | | | Number | | fair value | | Nonvested at January 1, 2012 | 6,404,965 | | $ | 29.68 | | Granted | 3,889,916 | | | 31.44 | | Nonvested at December 31, 2012 | 10,294,881 | | | 30.35 | | | | | | | | | | |
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| Stock Option Activity and Related Information |
| | | | | | | | | | | | | | | | | | | | | | | | | | Weighted- | | | | | | | | | | | | | | Weighted- | average | | | Aggregate | | | | | | | | | | | average | remaining | | | intrinsic | | | | | | | | | | | exercise | contractual | | | value | | | | | | | | Number | | | price | term (in yrs.) | | | (in millions) | | Incentive compensation plans | | | | | | | | | | Options outstanding as of December 31, 2011 | 271,298,603 | | $ | 38.14 | | | | | | | Granted | | 1,828,758 | | | 31.82 | | | | | | | Canceled or forfeited | (11,376,806) | | | 73.59 | | | | | | | Exercised | (58,824,163) | | | 21.78 | | | | | | Options exercisable and outstanding as of December 31, 2012 | 202,926,392 | | | 40.84 | 3.7 | | $ | 1,119 | | | | | | | | | | | | | | | | | PartnerShares Plan | | | | | | | | | | Options outstanding as of December 31, 2011 | 7,477,472 | | | 25.25 | | | | | | | Canceled or forfeited | (606,614) | | | 25.25 | | | | | | | Exercised | (6,870,858) | | | 25.25 | | | | | | Options outstanding as of December 31, 2012 | - | | | - | - | | | - | | | | | | | | | | | | | | | | | Director awards | | | | | | | | | | Options outstanding as of December 31, 2011 | 721,432 | | | 29.56 | | | | | | | Granted | | 82,893 | | | 33.82 | | | | | | | Canceled or forfeited | (19,232) | | | 33.41 | | | | | | | Exercised | (197,071) | | | 25.45 | | | | | | Options exercisable and outstanding as of December 31, 2012 | 588,022 | | | 31.42 | 3.2 | | | 2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| Summary of weighted-average per share fair value of options granted and the assumptions used |
| | | | | | | | | | | | | | Year ended December 31, | | | | | | 2012 | | 2011 | 2010 | | Per share fair value of options granted | $ | 2.79 | | 3.78 | 6.11 | | Expected volatility | | 29.2 | % | 32.7 | 44.3 | | Expected dividends | $ | 0.68 | | 0.32 | 0.20 | | Expected term (in years) | | 0.7 | | 1.0 | 1.3 | | Risk-free interest rate | | 0.1 | % | 0.2 | 0.6 | | | | | | | | | | | | | | | | | | |
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| Employee Stock Ownership Plan |
| | | | | | | | | | | | | Shares outstanding | | | | | | December 31, | | (in millions, except shares) | | 2012 | 2011 | 2010 | | Allocated shares (common) | | 136,821,035 | 131,046,406 | 118,901,327 | | Unreleased shares (preferred) | | 910,934 | 858,759 | 618,382 | | Fair value of unreleased ESOP preferred shares | $ | 911 | 859 | 618 | | | | | | | | | | | | | | | | | | | | | | Dividends paid | | | | | | Year ended December 31, | | | | | | 2012 | 2011 | 2010 | | Allocated shares (common) | $ | 117 | 60 | 23 | | Unreleased shares (preferred) | | 115 | 95 | 76 | | | | | | | | | | | | | | | | |
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