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Stock Compensation Plans (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($)
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

X

- 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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X

- 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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X

- Details

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Namespace Prefix:
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Period Type: