v3.20.4

Share-Based Payments (Tables) | 12 Months Ended
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Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |
Compensation Cost | Our consolidated statements of income include the compensation cost recognized for those plans as operating expenses, as well as the associated tax benefits, which are reflected in the table below:
| 2020 |  | 2019 |  | 2018
Performance stock units | $ | 348 |  |  | $ | 544 |  |  | $ | 301 |
Restricted stock and stock units | 290 |  |  | 273 |  |  | 153 |
Other nonvested stock units | — |  |  | 7 |  |  | 4 |
Stock options | — |  |  | (5) |  |  | 5 |
Total | $ | 638 |  |  | $ | 819 |  |  | $ | 463 |
Income tax benefit | $ | 157 |  |  | $ | 202 |  |  | $ | 114 |
Status of Nonvested Stock Units Activity and Changes During Year | A summary of the status of our nonvested stock units as of December 31, 2020, and changes during the year then ended is presented as follows (shares in millions):
Nonvested Stock Units | Shares |  | Weighted-Average Grant- Date Fair Value
Nonvested at January 1, 2020 | 42 |  | $ | 33.80 |
Granted | 23 |  | 36.90 |
Vested | (18) |  | 35.87 |
Forfeited | (4) |  | 34.48 |
Nonvested at December 31, 2020 | 43 |  | $ | 34.50 |

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