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Stock-Based Incentive Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2017
Stock-Based Incentive Compensation Plans [Abstract] |
Compensation Expense By Award Type |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ | For the Years Ended December 31, |
﻿ | 2017 |  | 2016 |  | 2015 |
﻿Stock options | $ | 10 |  | $ | 9 |  | $ | 7 |
﻿Performance shares |  | 13 |  |  | 11 |  |  | 12 |
﻿SARs |  | 2 |  |  | 3 |  |  | - |
﻿RSUs |  | 25 |  |  | 23 |  |  | 22 |
﻿Total | $ | 50 |  | $ | 46 |  | $ | 41 |
﻿ |  |  |  |  |  |  |  |  |
﻿Recognized tax benefit | $ | 18 |  | $ | 16 |  | $ | 14 |
﻿
Total unrecognized compensation expense for all stock-based incentive compensation plans |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ | For the Years Ended December 31, |
﻿ | 2017 |  | 2016 |  | 2015 |
﻿ |  |  | Weighted- |  |  |  | Weighted- |  |  |  | Weighted- |
﻿ |  |  | Average |  |  |  | Average |  |  |  | Average |
﻿ | Expense |  | Period |  | Expense |  | Period |  | Expense |  | Period |
﻿Stock options | $ | 9 |  | 1.4 |  | $ | 8 |  | 1.4 |  | $ | 8 |  | 1.4 |
﻿Performance shares |  | 12 |  | 1.2 |  |  | 12 |  | 1.4 |  |  | 11 |  | 1.0 |
﻿SARs |  | 2 |  | 3.2 |  |  | 2 |  | 3.6 |  |  | 1 |  | 3.0 |
﻿RSUs |  | 32 |  | 1.1 |  |  | 25 |  | 1.2 |  |  | 24 |  | 1.0 |
﻿Total unrecognized stock-based |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿incentive compensation expense | $ | 55 |  |  |  | $ | 47 |  |  |  | $ | 44 |  |  |
﻿
Option price assumptions used for stock option incentive plans |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ | For the Years Ended December 31, |
﻿ | 2017 |  | 2016 |  | 2015 |
﻿Weighted-average fair value per option granted | $ | 18.27 |  | $ | 9.32 |  | $ | 13.00 |
﻿Assumptions: |  |  |  |  |  |  |  |  |
﻿Dividend yield |  | 2.0% |  |  | 2.8% |  |  | 1.9% |
﻿Expected volatility |  | 31.5% |  |  | 35.9% |  |  | 28.0% |
﻿Risk-free interest rate |  | 1.7-2.1% |  |  | 1.0-1.6% |  |  | 1.4-1.7% |
﻿Expected life (in years) |  | 5.5 |  |  | 5.7 |  |  | 5.5 |
﻿
Summary of activity for stock options with performance conditions |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  | Weighted- |  |  |  |
﻿ |  |  | Weighted- |  | Average |  |  |
﻿ |  |  | Average | Remaining | Aggregate |
﻿ |  |  | Exercise | Contractual | Intrinsic |
﻿ | Shares |  | Price |  | Term |  | Value |
﻿Outstanding as of December 31, 2016 | 779,816 |  | $ | 49.83 |  |  |  |  |  |
﻿Granted – original | 102,728 |  |  | 69.01 |  |  |  |  |  |
﻿Exercised (includes shares tendered) | (596,374 | ) |  | 51.13 |  |  |  |  |  |
﻿Forfeited or expired | (14,446 | ) |  | 47.44 |  |  |  |  |  |
﻿Outstanding as of December 31, 2017 | 271,724 |  | $ | 54.37 |  | 2.69 |  | $ | 6 |
﻿ |  |  |  |  |  |  |  |  |  |
﻿Vested or expected to vest as of December 31, 2017 (1) | 236,907 |  | $ | 53.68 |  | 2.58 |  | $ | 5 |
﻿ |  |  |  |  |  |  |  |  |  |
﻿Exercisable as of December 31, 2017 | 202,090 |  | $ | 52.75 |  | 2.43 |  | $ | 5 |
﻿
| (1) |  | Includes estimated forfeitures.
Summary of activity for stock options with service conditions |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  | Weighted- |  |  |  |
﻿ |  |  | Weighted- |  | Average |  |  |
﻿ |  |  | Average | Remaining | Aggregate |
﻿ |  |  | Exercise | Contractual | Intrinsic |
﻿ | Shares |  | Price |  | Term |  | Value |
﻿Outstanding as of December 31, 2016 | 2,713,058 |  | $ | 41.97 |  |  |  |  |  |
﻿Granted – original | 407,637 |  |  | 71.47 |  |  |  |  |  |
﻿Exercised (includes shares tendered) | (840,733 | ) |  | 44.64 |  |  |  |  |  |
﻿Forfeited or expired | (87,823 | ) |  | 52.09 |  |  |  |  |  |
﻿Outstanding as of December 31, 2017 | 2,192,139 |  | $ | 46.02 |  | 7.07 |  | $ | 68 |
﻿ |  |  |  |  |  |  |  |  |  |
﻿Vested or expected to vest as of December 31, 2017 (1) | 1,965,675 |  | $ | 45.20 |  | 6.93 |  | $ | 62 |
﻿ |  |  |  |  |  |  |  |  |  |
﻿Exercisable as of December 31, 2017 | 1,214,214 |  | $ | 40.22 |  | 5.97 |  | $ | 45 |
﻿
| (1) |  | Includes estimated forfeitures.
Summary of activity for performance shares |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  | Weighted- |  |
﻿ |  |  |  | Average |  |
﻿ |  |  | Grant-Date |
﻿ | Shares |  |  | Fair Value |  |
﻿Nonvested as of December 31, 2016 | 577,935 |  |  | $ | 50.23 |  |
﻿Granted | 154,351 |  |  |  | 79.30 |  |
﻿Vested | (155,541 | ) |  |  | 54.68 |  |
﻿Forfeited | (19,796 | ) |  |  | 41.61 |  |
﻿Nonvested as of December 31, 2017 | 556,949 |  |  | $ | 53.65 |  |
﻿
Option price assumptions used for stock appreciation rights plan |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ | For the Years Ended December 31, |
﻿ | 2017 |  | 2016 |  | 2015 |
﻿Weighted-average fair value per SAR granted | $ | 20.06 |  | $ | 10.25 |  | $ | 14.22 |
﻿Assumptions: |  |  |  |  |  |  |  |  |
﻿Dividend yield |  | 1.5% |  |  | 2.9% |  |  | 1.6% |
﻿Expected volatility |  | 34.4% |  |  | 35.8% |  |  | 29.8% |
﻿Risk-free interest rate |  | 2.2% |  |  | 1.4% |  |  | 1.8% |
﻿Expected life (in years) |  | 5.0 |  |  | 5.0 |  |  | 5.0 |
﻿
Summary of activity for stock appreciation rights plan |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  | Weighted- |  |  |  |
﻿ |  |  | Weighted- |  | Average |  |  |
﻿ |  |  | Average | Remaining | Aggregate |
﻿ |  |  | Exercise | Contractual | Intrinsic |
﻿ | Shares |  | Price |  | Term |  | Value |
﻿Outstanding as of December 31, 2016 | 237,272 |  | $ | 42.59 |  |  |  |  |  |
﻿Granted – original | 26,494 |  |  | 69.01 |  |  |  |  |  |
﻿Exercised (includes shares tendered) | (93,159 | ) |  | 37.02 |  |  |  |  |  |
﻿Forfeited or expired | (8,419 | ) |  | 40.40 |  |  |  |  |  |
﻿Outstanding as of December 31, 2017 | 162,188 |  | $ | 50.22 |  | 2.50 |  | $ | 4 |
﻿ |  |  |  |  |  |  |  |  |  |
﻿Vested or expected to vest as of December 31, 2017 (1) | 155,300 |  | $ | 50.18 |  | 2.45 |  | $ | 4 |
﻿ |  |  |  |  |  |  |  |  |  |
﻿Exercisable as of December 31, 2017 | 92,092 |  | $ | 48.72 |  | 1.88 |  | $ | 3 |
﻿
| (1) |  | Includes estimated forfeitures.
Summary of activity for restricted stock units |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  |  |  | Weighted- |  |
﻿ |  |  |  | Average |  |
﻿ |  |  | Grant-Date |
﻿ | Shares |  |  | Fair Value |  |
﻿Outstanding as of December 31, 2016 | 1,508,367 |  |  | $ | 45.61 |  |
﻿Granted | 448,527 |  |  |  | 71.26 |  |
﻿Vested | (400,886 | ) |  |  | 51.01 |  |
﻿Forfeited | (61,276 | ) |  |  | 46.34 |  |
﻿Outstanding as of December 31, 2017 | 1,494,732 |  |  | $ | 51.83 |  |
﻿

X
- Definition 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. Disclosure of the number, aggregate intrinsic value, and weighted-average remaining contractual term for both restricted stock units outstanding and restricted stock units fully vested and expected to vest as of the balance sheet date. + References No definition available. + Details
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