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Stock-Based Compensation (Tables) | 12 Months Ended
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Sep. 30, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Schedule of Share-based Payment Arrangement, Cost by Plan | Total compensation expense and income tax benefits for stock options and incentive shares follows. The Company's performance shares awards are marked-to-market each period based on changes in the stock price.
| 2019 |  |  | 2020 |  |  | 2021
Performance shares | $ | 96 |  |  | 98 |  |  | 203 |
Restricted stock and restricted stock units | 21 |  |  | 11 |  |  | 21 |
Stock options | 3 |  |  | 1 |  |  | — |
Total stock compensation expense | $ | 120 |  |  | 110 |  |  | 224 |
Income tax benefits recognized | $ | 20 |  |  | 18 |  |  | 27 |
Schedule of Performance Share Payout Information | Information related to performance share payouts for the years ended September 30, 2020 and 2021 follows (shares in thousands):
| 2020 |  |  | 2021
Performance period | 2017 - 2019 |  | 2018 - 2020
Percent payout | 107 | % |  | 100 | %
Total shares earned | 2,008 |  | 1,535
Shares distributed in cash, primarily for tax withholding | 883 |  | 672
Schedule Of Changes In Incentive Awards Outstanding | Changes in shares outstanding but not yet earned under incentive shares plans during the year ended September 30, 2021 follow (shares in thousands; assumes 100 percent payout of unvested awards):
| Shares |  | Average Grant Date Fair Value Per Share
Beginning of year | 5,916 |  |  |  | $ | 67.22 |  |
Granted | 2,095 |  |  |  | $ | 71.75 |  |
Earned/vested | (1,867) |  |  |  | $ | 63.28 |  |
Canceled | (503) |  |  |  | $ | 67.54 |  |
End of year | 5,641 |  |  |  | $ | 70.22 |  |
Schedule of Supplemental Information For Incentive Awards | Information related to incentive shares plans follows:
| 2019 |  |  | 2020 |  |  | 2021 |
Total fair value of shares earned/vested | $ | 145 |  |  | 164 |  |  | 131 |
Share awards distributed in cash, primarily for tax withholding | $ | 73 |  |  | 81 |  |  | 58 |
Schedule Of Changes In Shares Subject To Option | Changes in shares subject to options during the year ended September 30, 2021 follow (shares in thousands):
| Weighted- Average Exercise Price Per Share |  | Shares |  | Total Intrinsic Value of Shares |  | Average Remaining Life (Years)
Beginning of year |  | $ | 58.42 |  |  |  | 4,133 |  |  |  |  |  |  |  |  |
Options granted |  | $ | — |  |  |  | — |  |  |  |  |  |  |  |  |
Options exercised |  | $ | 58.85 |  |  |  | (2,071) |  |  |  |  |  |  |  |  |
Options canceled |  | $ | 61.19 |  |  |  | (45) |  |  |  |  |  |  |  |  |
End of year |  | $ | 57.96 |  |  |  | 2,017 |  |  |  | $ | 75 |  |  |  |  | 3.1 |
Exercisable at end of year |  | $ | 57.96 |  |  |  | 2,017 |  |  |  | $ | 75 |  |  |  |  | 3.1 |
Schedule of Cash Proceeds Received and Tax Benefit from Share-based Payment Awards, Options | Information related to stock options follows:
| 2019 |  |  | 2020 |  |  | 2021 |
Cash received for option exercises | $ | 40 |  |  | 126 |  |  | 114 |
Intrinsic value of options exercised | $ | 16 |  |  | 47 |  |  | 53 |
Tax benefits related to option exercises | $ | 8 |  |  | 8 |  |  | 6 |

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