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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The following table presents the weighted average fair value of each option grant and the underlying weighted average assumptions, as of the grant date, using the Black-Scholes option-pricing model:
December 31, |  | 2015 |  | 2014 |  | 2013
Expected volatility |  | 25 | % |  | 24 | % |  | 23 | %
Expected annual dividend yield |  | 3 | % |  | 1 | % |  | 1 | %
Expected option term (years) |  | 7 |  |  | 6 |  |  | 6 |
Risk-free interest rate |  | 1.86 | % |  | 1.86 | % |  | 1.13 | %
Fair value at grant date |  | $ | 2.07 |  |  | $ | 3.26 |  |  | $ | 2.23 |
Schedule of Share Based Compensation Summary of Financial Statement Components Stock Options | The following table summarizes the components of stock-based compensation related to employee stock options recognized in the Company's consolidated financial statements in millions:
December 31, |  | 2015 |  | 2014 |  | 2013
Pretax compensation expense |  | $ | 3 |  |  | $ | 3 |  |  | $ | 2 |
Tax benefit |  | (1 | ) |  | (1 | ) |  | (1 | )
Stock options expense, net of tax |  | $ | 2 |  |  | $ | 2 |  |  | $ | 1 |
Total intrinsic value of options exercised |  | $ | 1 |  |  | $ | 1 |  |  | $ | 5 |
Total fair value of options vested |  | 3 |  |  | 2 |  |  | 2 |
Cash received from the exercise of stock options |  | 5 |  |  | 3 |  |  | 13 |
Schedule of Share-based Compensation, Stock Options, Activity | A summary of the option activity for the year ended December 31, 2015 follows (number of options in thousands, dollars in millions except per option amounts):
|  | Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value
Outstanding at December 31, 2014 |  | 7,062 |  |  | $ | 14.83 |  |  |  |  |
Exercised |  | (419 | ) |  | 10.76 |  |  |  |  |
Forfeited and expired |  | (1,347 | ) |  | 17.49 |  |  |  |  |
Granted |  | 1,859 |  |  | 11.89 |  |  |  |  |
Outstanding at December 31, 2015 |  | 7,155 |  |  | $ | 13.81 |  |  | 6 |  | $ | 1 |
Vested and expected to vest at December 31, 2015 |  | 6,771 |  |  | $ | 13.88 |  |  | 5.8 |  | $ | 1 |
Eligible for exercise at December 31, 2015 |  | 4,292 |  |  | $ | 14.70 |  |  | 4.1 |  | $ | 1 |
Schedule of Share Based Compensation Summary of Financial Statement Components Restricted Stock Units Without Market Conditions | The following table summarizes the components of the Company's stock-based compensation related to its employee RSUs recognized in the Company's consolidated financial statements in millions:
December 31, |  | 2015 |  | 2014 |  | 2013
RSU expense before income tax |  | $ | 13 |  |  | $ | 12 |  |  | $ | 12 |
Tax benefit |  | (3 | ) |  | (3 | ) |  | (3 | )
RSU expense, net of tax |  | $ | 10 |  |  | $ | 9 |  |  | $ | 9 |
Total value of RSUs converted (1) |  | $ | 16 |  |  | $ | 25 |  |  | $ | 10 |
Total fair value of RSUs vested |  | $ | 12 |  |  | $ | 13 |  |  | $ | 12 |
(1) | Amount represents fair market value on the date of conversion.
Schedule of Share Based Compensation Restricted Stock Units Without Market Conditions Activity Table | A summary of the activity of RSUs for the year ended December 31, 2015 follows (number of RSUs in thousands):
|  | RSUs |  | Weighted Average Grant Date Fair Values |  | Weighted Average Remaining Vesting Term
Nonvested at December 31, 2014 |  | 1,997 |  |  | $ | 13.20 |  |  |
Vested |  | (954 | ) |  | 13.01 |  |  |
Forfeited and expired |  | (236 | ) |  | 12.71 |  |  |
Granted |  | 1,585 |  |  | 12.03 |  |  |
Nonvested at December 31, 2015 |  | 2,392 |  |  | $ | 12.55 |  |  | 1.7
Vested at December 31, 2015 |  | — |  |  | $ | — |  |  |
Vested and expected to vest at December 31, 2015 |  | 2,105 |  |  | $ | 12.55 |  |  |
Schedule of Share Based Compensation Restricted Stock Units Without Market Condition Vested And Converted | The table below summarizes the RSUs that vested and were converted during the years ended December 31, 2015, 2014, and 2013 (number of RSUs in thousands):
|  | 2015 |  | 2014 |  | 2013
RSUs vested during the year |  | 954 |  |  | 1,037 |  |  | 942 |
RSUs converted during the year, net of shares withheld for taxes |  | 1,238 |  |  | 1,734 |  |  | 905 |
Shares withheld for taxes |  | 549 |  |  | 796 |  |  | 407 |
Schedule of Share Based Compensation Summary of Financial Statement Components Restricted Stock Units With Market Conditions | The following table summarizes the components of the Company's stock-based compensation related to its PSUs recognized in the Company's consolidated financial statements in millions:
December 31, |  | 2015 |  | 2014 |  | 2013
PSU expense before income tax |  | $ | 5 |  |  | $ | 6 |  |  | $ | 4 |
Tax benefit |  | (1 | ) |  | (2 | ) |  | (1 | )
PSU expense, net of tax |  | $ | 4 |  |  | $ | 4 |  |  | $ | 3 |
Total value of PSUs converted(1) |  | $ | 1 |  |  | $ | 4 |  |  | $ | — |
Total fair value of PSUs vested |  | 3 |  |  | 1 |  |  | — |
(1) | Amount represents fair market value on the date of conversion.
Schedule of Share Based Compensation Restricted Stock Units With Market Conditions Activity | A summary of the activity of PSUs for the year ended December 31, 2015 follows (number of PSUs in thousands):
|  | PSUs |  | Weighted Average Grant Date Fair Values |  | Weighted Average Remaining Vesting Term
Nonvested at December 31, 2014 |  | 1,331 |  |  | $ | 14.27 |  |  |
Vested |  | (161 | ) |  | 16.73 |  |  |
Forfeited and expired |  | (245 | ) |  | 15.27 |  |  |
Granted |  | 626 |  |  | 10.06 |  |  |
Nonvested at December 31, 2015 |  | 1,551 |  |  | $ | 12.16 |  |  | 1.2
Vested at December 31, 2015 |  | — |  |  | $ | — |  |  |
Vested and expected to vest at December 31, 2015 |  | 1,298 |  |  | 11.92 |  |  |
Schedule of Share Based Compensation Restricted Stock Units With Market Condition Vested and Converted | The table below summarizes the PSUs that vested and were converted during the years ended December 31, 2015, 2014, and 2013 (number of PSUs in thousands):
|  | 2015 |  | 2014 |  | 2013
PSUs vested during the year |  | 161 |  |  | 85 |  |  | — |
PSUs converted during the year, net of shares withheld for taxes |  | 96 |  |  | 287 |  |  | — |
Shares withheld for taxes |  | 65 |  |  | 141 |  |  | — |

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- Definition For restricted stock units without market conditions, disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. Also includes 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 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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