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Stock-Based Compensation | 12 Months Ended
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Sep. 30, 2019
Share-based Compensation [Abstract] |
Stock-Based Compensation | STOCK-BASED COMPENSATION The Company's stock-based compensation plans include stock options, performance shares, restricted stock and restricted stock units. Although the Company has discretion, shares distributed under these plans are issued from treasury stock. Stock Options The Company's stock option plans permit key officers and employees to purchase common stock at specified prices, which are equal to 100 percent of the closing market price of the Company's stock on the date of grant. Options generally vest one-third in each of the three years subsequent to grant and expire 10 years from the date of grant. Compensation expense is recognized ratably over the vesting period based on the number of options expected to vest. As of September 30, 2019, 11.6 million options were available for grant under the plans. Changes in shares subject to options during the year ended September 30, 2019 follow (shares in thousands):
| Weighted- Average Exercise Price Per Share |  | Shares |  | Total Intrinsic Value of Shares |  | Average Remaining Life (Years)
Beginning of year |  | $ | 56.37 |  |  |  | 7,801 |  |  |  |  |  |  |  |  |
Options granted |  | $ | — |  |  |  | — |  |  |  |  |  |  |  |  |
Options exercised |  | $ | 49.35 |  |  |  | (854 | ) |  |  |  |  |  |  |  |
Options canceled |  | $ | 57.85 |  |  |  | (32 | ) |  |  |  |  |  |  |  |
End of year |  | $ | 57.23 |  |  |  | 6,915 |  |  |  | $ | 67 |  |  |  |  | 4.2 |
Exercisable at end of year |  | $ | 57.27 |  |  |  | 6,795 |  |  |  | $ | 66 |  |  |  |  | 4.2 |
The weighted-average grant date fair value per option was $12.13 and $8.36 in 2018 and 2017, respectively. Cash received for option exercises was $40 in 2019, $143 in 2018 and $148 in 2017. The total intrinsic value of options exercised in 2019, 2018 and 2017 was $16, $53 and $36, while the tax benefit from tax deductions related to option exercises was $8, $7 and $2, respectively. The grant date fair value of options is estimated using the Black-Scholes option-pricing model. The weighted-average assumptions used in valuations for 2018 and 2017 are, respectively: risk-free interest rate, based on U.S. Treasury yield, 2.4 percent and 1.7 percent; dividend yield, 2.9 percent and 3.6 percent; and expected volatility, based on historical volatility, 23 percent and 24 percent. The expected life of each option awarded is seven years based on historical experience and expected future exercise patterns. Performance Shares, Restricted Stock and Restricted Stock Units The Company's incentive shares plans include performance shares awards which distribute the value of common stock to key management employees subject to certain operating performance conditions and other restrictions. The form of distribution is primarily shares of common stock, with a portion in cash. Compensation expense for performance shares is recognized over the service period based on the number of shares ultimately expected to be earned. Performance shares awards are accounted for as liabilities in accordance with ASC 718, Compensation - Stock Compensation, with compensation expense adjusted at the end of each reporting period to reflect the change in fair value of the awards. As of September 30, 2016, 4,944,575 performance shares awarded primarily in 2013 were outstanding, contingent on the Company achieving its performance objectives through 2016 and the provision of additional service by employees. The objectives for these shares were met at the 86 percent level at the end of 2016, or 4,252,335 shares. Of these, 2,549,083 shares were distributed in early 2017 as follows: 1,393,715 issued as shares, 944,002 withheld for income taxes, and the value of 211,366 paid in cash. An additional 1,691,986 shares were distributed at the end of 2017 to employees who provided one additional year of service as follows: 1,070,264 issued as shares, 616,734 withheld for income taxes, and the value of 4,988 paid in cash. There were 11,266 shares canceled and not distributed. As of September 30, 2018, 1,874,750 shares awarded primarily in 2016 were outstanding, contingent on the Company achieving its performance objectives through 2018. The objectives for these shares were met at the 97 percent level at the end of 2018 and 1,818,510 shares were distributed in early 2019 as follows: 1,023,789 issued as shares, 588,094 withheld for income taxes, and the value of 206,627 paid in cash. As of September 30, 2019, 1,877,650 shares awarded primarily in 2017 were outstanding, contingent on the Company achieving its performance objectives through 2019. The objectives for these shares were met at the 107 percent level at the end of 2019 and 2,009,085 shares will be distributed in early 2020. Additionally, the rights to receive a maximum of 1,811,605 and 2,125,954 common shares were awarded in 2019 and 2018, respectively, under the new performance shares program, and are outstanding and contingent upon the Company achieving its performance objectives through 2021 and 2020, respectively. Incentive shares plans also include restricted stock awards which involve distribution of common stock to key management employees subject to cliff vesting at the end of service periods ranging from three to ten years. The fair value of restricted stock awards is determined based on the average of the high and low market prices of the Company's common stock on the date of grant, with compensation expense recognized ratably over the applicable service period. In 2019, 250,000 shares of restricted stock vested as a result of participants fulfilling the applicable service requirements. Consequently, 148,707 shares were issued while 101,293 shares were withheld for income taxes in accordance with minimum withholding requirements. As of September 30, 2019, there were 1,262,700 shares of unvested restricted stock outstanding. The total fair value of shares distributed under incentive shares plans was $145, $20 and $245, respectively, in 2019, 2018 and 2017, of which $73, $9 and $101 was paid in cash, primarily for tax withholding. As of September 30, 2019, 8.8 million shares remained available for award under incentive shares plans. Changes in shares outstanding but not yet earned under incentive shares plans during the year ended September 30, 2019 follow (shares in thousands; assumes 100 percent payout of unvested awards):
| Shares |  | Average Grant Date Fair Value Per Share
Beginning of year | 6,898 |  |  |  | $ | 54.69 |  |
Granted | 1,740 |  |  |  | $ | 68.99 |  |
Earned/vested | (2,068 | ) |  |  | $ | 47.93 |  |
Canceled | (245 | ) |  |  | $ | 59.85 |  |
End of year | 6,325 |  |  |  | $ | 60.63 |  |
Total compensation expense for stock options and incentive shares was $120, $216 and $115 for 2019, 2018 and 2017, respectively, of which $5 was included in discontinued operations for 2017. The decrease in expense in 2019 reflects a decreasing stock price in the current year compared to an increasing stock price in the prior year. The increase in expense for 2018 reflects an increase in the Company's stock price and progress toward achieving its performance objectives. Income tax benefits recognized in the income statement for these compensation arrangements during 2019, 2018 and 2017 were $20, $42 and $33, respectively. As of September 30, 2019, total unrecognized compensation expense related to unvested shares awarded under these plans was $138, which is expected to be recognized over a weighted-average period of 1.6 years. In addition to the employee stock option and incentive shares plans, in 2019 the Company awarded 17,466 shares of restricted stock and 2,264 restricted stock units under the restricted stock plan for non-management directors. As of September 30, 2019, 139,635 shares were available for issuance under this plan.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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