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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of stock-based compensation expense and tax benefits | The following table reflects activity related to our stock-based compensation arrangements (in millions):
| Year Ended December 31,
| 2013 |  | 2012 |  | 2011
Stock-based compensation expense | $ | 64 |  |  | $ | 58 |  |  | $ | 58 |
Tax benefit recognized on stock-based compensation expense | 22 |  |  | 20 |  |  | 20 |
Tax benefit realized for tax deductions resulting from exercises and vestings | 66 |  |  | 45 |  |  | 35 |
Effect of tax deductions in excess of recognized stock-based compensation expense reported as a financing cash flow | 47 |  |  | 27 |  |  | 23 |
Summary of weighted-average assumptions used in fair value measurements | A summary of the weighted-average assumptions used in our fair value measurements is presented in the table below.
| Year Ended December 31,
| 2013 |  | 2012 |  | 2011
Expected life in years | 6.0 |  |  | 6.0 |  |  | 6.0 |
Expected volatility | 49.63 | % |  | 49.11 | % |  | 49.30 | %
Expected dividend yield | 2.27 | % |  | 2.39 | % |  | 2.28 | %
Risk-free interest rate | 1.77 | % |  | 0.85 | % |  | 1.44 | %
Summary of stock option awards | A summary of the status of our stock option awards is presented in the table below.
| Number of Stock Options |  | Weighted- Average Exercise Price Per Share |  | Weighted- Average Remaining Contractual Term |  | Aggregate Intrinsic Value
|  |  |  |  | (in years) |  | (in millions)
Outstanding as of January 1, 2013 | 13,214,728 |  |  | $ | 28.54 |  |  |  |  |
Granted | 201,300 |  |  | 39.67 |  |  |  |  |
Exercised | (3,837,090 | ) |  | 15.21 |  |  |  |  |
Expired | (1,780,113 | ) |  | 49.45 |  |  |  |  |
Options granted on conversion related to separation of retail business | 759,268 |  |  | 28.84 |  |  |  |  |
Outstanding as of December 31, 2013 | 8,558,093 |  |  | 27.88 |  |  | 3.5 |  | $ | 216 |
Exercisable as of December 31, 2013 | 8,037,807 |  |  | 27.66 |  |  | 3.1 |  | 206 |
The following table reflects activity related to our stock options granted (in millions, except per share data):
| Year Ended December 31,
| 2013 |  | 2012 |  | 2011
Weighted average grant-date fair value price per share | $ | 15.83 |  |  | $ | 10.98 |  |  | $ | 10.10 |
Intrinsic value of stock options exercised | 101 |  |  | 78 |  |  | 63 |
Cash received from stock option exercises | 59 |  |  | 59 |  |  | 49 |
Summary of restricted stock awards | A summary of the status of our restricted stock awards is presented in the table below.
| Number of Shares |  | Weighted- Average Grant-Date Fair Value Per Share
Nonvested shares as of January 1, 2013 | 2,920,288 |  |  | $ | 24.76 |
Granted | 1,255,742 |  |  | 39.55 |
Vested | (2,113,647 | ) |  | 23.73 |
Forfeited | (31,546 | ) |  | 23.73 |
Shares granted on conversion related to separation of retail business | 174,477 |  |  | 23.42 |
Nonvested shares as of December 31, 2013 | 2,205,314 |  |  | 32.23 |
Summary of performance awards | A summary of the status of our performance awards considered granted is presented below.
| Nonvested Awards |  | Vested Awards
Awards outstanding as of January 1, 2013 | 989,414 |  |  | 208,916 |
Granted | 415,317 |  |  | — |
Vested | (442,274 | ) |  | 442,274 |
Converted | — |  |  | (534,515 | )
Forfeited | (50,076 | ) |  | (116,675 | )
Shares granted on conversion related to separation of retail business | 34,784 |  |  | — |
Awards outstanding as of December 31, 2013 | 947,165 |  |  | — |
There were three tranches of performance awards granted during the year ended December 31, 2013 as follows:
| Awards Granted |  | Expected Conversion Rate |  | Fair Value Per Share
Third tranche of 2011 awards | 227,565 |  |  | 100% |  | $ | 38.77 |
Second tranche of 2012 awards | 105,030 |  |  | 100% |  | 38.77 |
First tranche of 2013 awards | 82,722 |  |  | 100% |  | 38.77 |
Total | 415,317 |  |  |  |  |
Performance awards converted during the year ended December 31, 2013 were as follows:
| Vested Awards Converted |  | Actual Conversion Rate |  | Number of Shares Issued |  | Awards Forfeited
2010 awards | 417,833 |  |  | 100% |  | 417,833 |  |  | — |
2011 awards | 233,357 |  |  | 50% |  | 116,682 |  |  | 116,675 |
Total | 651,190 |  |  |  |  | 534,515 |  |  | 116,675 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number, aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both performance-based awards (or share units) outstanding and performance-based awards (or share units) fully vested and expected to vest at the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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