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Stock Compensation Plans (Tables) | 9 Months Ended
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Sep. 30, 2021
Share-based Payment Arrangement [Abstract] |
Stock-Based Compensation Expense and Related Tax Benefits | Stock-based compensation expense and related tax benefits were as follows:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(DOLLARS IN MILLIONS) | 2021 |  | 2020 |  | 2021 |  | 2020
Equity-based awards | $ | 17 |  |  | $ | 8 |  |  | $ | 44 |  |  | $ | 27 |
Liability-based awards | — |  |  | 1 |  |  | 6 |  |  | 3 |
Total stock-based compensation expense | 17 |  |  | 9 |  |  | 50 |  |  | 30 |
Less: Tax benefit | (3) |  |  | (2) |  |  | (10) |  |  | (5) |
Total stock-based compensation expense, after tax | $ | 14 |  |  | $ | 7 |  |  | $ | 40 |  |  | $ | 25 |

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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