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Share-Based Compensation | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Share-Based Compensation | NOTE 2 — SHARE-BASED COMPENSATION Stock Incentive Plans Our stock incentive plans are designed to promote the long-term financial interests and growth of the Company by attracting and retaining management and other personnel, motivating them to achieve long range goals and aligning their interests with those of our stockholders. Stock appreciation right (“SARs”) and restricted share unit (“RSUs”) grants vest solely based upon continued employment over a specific period of time, and performance share unit (“PSUs”) grants vest based upon both continued employment over a specific period of time and the achievement of predetermined financial targets over a specific period of time. At December 31, 2022 there were 13.826 million shares available for future grants. Employee Stock Purchase Plan Our employee stock purchase plan (“ESPP”) provides our participating employees an opportunity to obtain shares of our common stock at a discount (through payroll deductions over three-month periods). At December 31, 2022, 4.436 million shares of common stock were reserved for ESPP issuances. During 2022, 2021 and 2020, the Company recognized $16 million, $15 million and $13 million, respectively, of compensation expense related to the ESPP. SAR, RSU and PSU Activity The fair value of each SAR award is estimated on the grant date, using valuation models and the weighted average assumptions indicated in the following table. Awards under our stock incentive plans generally vest based on continued employment (“Time SARs” and “RSUs”) or based upon continued employment and the achievement of certain financial targets (“Performance SARs” and “PSUs”). PSUs have a three-year cumulative earnings per share target, and the number of PSUs earned can vary from zero (for actual performance of less than 90% of target) to two times the original PSU grant (for actual performance of 110% or more of target). Each grant is valued as a single award with an expected term equal to the average expected term of the component vesting tranches. The expected term of the share-based award is limited by the contractual term. We use historical exercise behavior data and other factors to estimate the expected term of the SARs. Compensation cost is recognized on the straight-line attribution method. The straight-line attribution method requires that total compensation expense recognized must at least equal the vested portion of the grant-date fair value. The expected volatility is derived using historical stock price information for our common stock and the volatility implied by the trading of options to purchase our stock on open-market exchanges. The risk-free interest rate is the approximate yield on United States Treasury Strips having a life equal to the expected share-based award life on the date of grant. The expected life is an estimate of the number of years a share-based award will be held before it is exercised. The expected dividend yield is estimated based on the assumption that the dividend yield at date of grant will be maintained over the expected life of the grant.
|  | 2022 |  |  | 2021 |  |  | 2020 |
Risk-free interest rate |  |  | 1.64 | % |  |  | 0.68 | % |  |  | 1.44 | %
Expected volatility |  |  | 34 | % |  |  | 36 | % |  |  | 27 | %
Expected life, in years |  |  | 5.11 |  |  |  | 6.17 |  |  |  | 6.15 |
Expected dividend yield |  |  | 0.95 | % |  |  | 1.10 | % |  |  | 1.19 | %
Information regarding Time SARs and Performance SARs activity during 2022, 2021 and 2020 is summarized below (share amounts in thousands):
|  | Time SARs |  |  | Performance SARs |  |  | Total SARs |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value (dollars in millions) |
SARs outstanding, December 31, 2019 |  |  | 9,050 |  |  |  | 2,144 |  |  |  | 11,194 |  |  | $ | 71.79 |  |  |  |  |  |  |  |  |
Granted |  |  | 1,120 |  |  |  | — |  |  |  | 1,120 |  |  |  | 144.47 |  |  |  |  |  |  |  |  |
Exercised |  |  | (2,159 | ) |  |  | (1,325 | ) |  |  | (3,484 | ) |  |  | 44.07 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (175 | ) |  |  | — |  |  |  | (175 | ) |  |  | 111.69 |  |  |  |  |  |  |  |  |
SARs outstanding, December 31, 2020 |  |  | 7,836 |  |  |  | 819 |  |  |  | 8,655 |  |  |  | 91.53 |  |  |  |  |  |  |  |  |
Granted |  |  | 877 |  |  |  | — |  |  |  | 877 |  |  |  | 174.98 |  |  |  |  |  |  |  |  |
Exercised |  |  | (2,443 | ) |  |  | (533 | ) |  |  | (2,976 | ) |  |  | 67.57 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (108 | ) |  |  | — |  |  |  | (108 | ) |  |  | 138.32 |  |  |  |  |  |  |  |  |
SARs outstanding, December 31, 2021 |  |  | 6,162 |  |  |  | 286 |  |  |  | 6,448 |  |  |  | 113.15 |  |  |  |  |  |  |  |  |
Granted |  |  | 570 |  |  |  | — |  |  |  | 570 |  |  |  | 236.00 |  |  |  |  |  |  |  |  |
Exercised |  |  | (660 | ) |  |  | (159 | ) |  |  | (819 | ) |  |  | 90.84 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (112 | ) |  |  | — |  |  |  | (112 | ) |  |  | 182.87 |  |  |  |  |  |  |  |  |
SARs outstanding, December 31, 2022 |  |  | 5,960 |  |  |  | 127 |  |  |  | 6,087 |  |  | $ | 126.38 |  |  |  | 5.7 years |  |  | $ | 691 |
SARs exercisable, December 31, 2022 |  |  | 4,022 |  |  |  | 127 |  |  |  | 4,149 |  |  | $ | 102.20 |  |  |  | 4.7 years |  |  | $ | 572 |
The weighted average fair values of SARs granted during 2022 , 2021 and 2020 were $ 69.55 , $ 54.57 and $ 35.98 per share, respectively. The intrinsic values of SARs exercised during 2022 , 2021 and 2020 were $ 115 million, $ 404 million and $ 328 million, respectively. As of December 31 , 2022 , the unrecognized compensation cost related to nonvested SARs was $ 40 million. Information regarding RSUs and PSUs activity during 2022 , 2021 and 2020 is summarized below (share amounts in thousands):
|  | RSUs |  |  | PSUs |  |  | Total RSUs and PSUs |  |  | Weighted Average Grant Date Fair Value |
RSUs and PSUs outstanding, December 31, 2019 |  |  | 2,620 |  |  |  | 3,035 |  |  |  | 5,655 |  |  | $ | 105.23 |
Granted |  |  | 1,048 |  |  |  | 808 |  |  |  | 1,856 |  |  |  | 144.17 |
Performance adjustment |  |  | — |  |  |  | 206 |  |  |  | 206 |  |  |  | 81.89 |
Vested |  |  | (1,030 | ) |  |  | (1,364 | ) |  |  | (2,394 | ) |  |  | 88.63 |
Cancelled |  |  | (162 | ) |  |  | (93 | ) |  |  | (255 | ) |  |  | 124.50 |
RSUs and PSUs outstanding, December 31, 2020 |  |  | 2,476 |  |  |  | 2,592 |  |  |  | 5,068 |  |  |  | 125.40 |
Granted |  |  | 899 |  |  |  | 689 |  |  |  | 1,588 |  |  |  | 174.34 |
Performance adjustment |  |  | — |  |  |  | 684 |  |  |  | 684 |  |  |  | 102.02 |
Vested |  |  | (992 | ) |  |  | (1,772 | ) |  |  | (2,764 | ) |  |  | 106.62 |
Cancelled |  |  | (192 | ) |  |  | (110 | ) |  |  | (302 | ) |  |  | 149.07 |
RSUs and PSUs outstanding, December 31, 2021 |  |  | 2,191 |  |  |  | 2,083 |  |  |  | 4,274 |  |  |  | 150.32 |
Granted |  |  | 611 |  |  |  | 455 |  |  |  | 1,066 |  |  |  | 235.71 |
Performance adjustment |  |  | — |  |  |  | 699 |  |  |  | 699 |  |  |  | 138.45 |
Vested |  |  | (878 | ) |  |  | (1,399 | ) |  |  | (2,277 | ) |  |  | 138.41 |
Cancelled |  |  | (140 | ) |  |  | (123 | ) |  |  | (263 | ) |  |  | 183.86 |
RSUs and PSUs outstanding, December 31, 2022 |  |  | 1,784 |  |  |  | 1,715 |  |  |  | 3,499 |  |  | $ | 179.18 |
The fair values of RSUs and PSUs that vested during 2022, 2021 and 2020 were $550 million, $475 million and $349 million, respectively. As of December 31, 2022, the unrecognized compensation cost related to RSUs and PSUs was $324 million.

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