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Stock Compensation Plans Level 3 (Tables) | 12 Months Ended
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Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock based Compensation Plans |
| For the years ended December 31,
| 2016 | 2015 | 2014
Stock-based compensation plans expense | $ | 81 |  | $ | 78 |  | $ | 98 |
Income tax benefit | (29 | ) | (27 | ) | (34 | )
Total stock-based compensation plans expense, after-tax | $ | 52 |  | $ | 51 |  | $ | 64 |
The risk-free rate for periods within the contractual life of the option |
| For the years ended December 31,
| 2016 | 2015 | 2014
Expected dividend yield | 2.0% | 1.8% | 1.7%
Expected annualized spot volatility | 27.3 | % | - | 41.3% | 22.1 | % | - | 39.4% | 25.9 | % | - | 57.8%
Weighted average annualized volatility | 34.1% | 32.7% | 35.1%
Risk-free spot rate | 0.3 | % | - | 1.8% | — | % | - | 2.6% | 0.1 | % | - | 2.8%
Expected term | 5.0 years | 5.0 years | 5.0 years
Summary of the status of non-qualified stock options included in the company's stock plans |
| For the years ended December 31,
| 2016 | 2015 | 2014
Volatility of common stock | 22.2% | 21.4% | 31.6%
Average volatility of peer companies | 15.0 | % | - | 26.0% | 14.0 | % | - | 24.0% | 17.0 | % | - | 29.0%
Average correlation coefficient of peer companies | 56.0% | 54.0% | 62.0%
Risk-free spot rate | 1.0% | 1.1% | 0.7%
Term | 3.0 years | 3.0 years | 3.0 years
| Number of Options (in thousands) | Weighted Average Exercise Price | Weighted Average Remaining Contractual Term | Aggregate Intrinsic Value
| For the year ended December 31, 2016
Outstanding at beginning of year | 3,800 |  | $ | 33.09 |  |  |
Granted | 932 |  | $ | 43.59 |  |  |
Exercised | (39 | ) | $ | 22.49 |  |  |
Forfeited | — |  |  |  |  |
Expired | (94 | ) | $ | 81.81 |  |  |
Outstanding at end of year | 4,599 |  | $ | 34.31 |  | 6.3 years | $ | 63 |
Outstanding, fully vested and expected to vest | 4,545 |  | $ | 34.71 |  | 6.3 years | $ | 59 |
Exercisable at end of year | 2,923 |  | $ | 29.74 |  | 5.0 years | $ | 54 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable [Table Text Block] |
| Restricted Stock and Restricted Stock Units | Performance Shares
| Number of Shares (in thousands) | Weighted-Average Grant-Date Fair Value | Number of Shares (in thousands) | Weighted-Average Grant date Fair Value
Non-vested shares | For the year ended December 31, 2016
Non-vested at beginning of year | 5,868 |  | $ | 33.12 |  | 775 |  | $ | 37.35 |
Granted | 1,704 |  | $ | 42.87 |  | 430 |  | $ | 41.50 |
Performance based adjustment |  |  | 237 |  | $ | 36.45 |
Vested | (2,468 | ) | $ | 25.90 |  | (474 | ) | $ | 36.45 |
Forfeited | (191 | ) | $ | 38.72 |  | (27 | ) | $ | 40.69 |
Non-vested at end of year | 4,913 |  | $ | 39.87 |  | 941 |  | $ | 40.72 |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + 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 (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 restricted stock units outstanding and restricted stock 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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