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Stock Compensation Plans (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2021 | Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Accelerated stock compensation expense |  | $ 104
Qualified Retirement Equity Program |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Accelerated stock compensation expense | $ 104 |

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- Definition Amount of additional cost recognized for award under share-based payment arrangement from occurrence of event accelerating recognition of cost. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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