Subsequent Events - Additional Information (Detail) - Subsequent Event - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
Feb. 09, 2021	Mar. 31, 2021
Subsequent Event [Line Items]
Share repurchase program, amount	$ 1,000
Dividend declared, declaration date	Feb. 09, 2021
Dividend declared, per share (in dollars per share)	$ 0.62
Dividend declared, payable date	Mar. 18, 2021
Dividend declared, record date	Feb. 25, 2021
Forecast
Subsequent Event [Line Items]
Lapse of statute of limitations		$ 61
Interest accrued on UTPs		$ 40

Unrecognized Tax Benefits, Interest, Reduction Resulting from Lapse of Applicable Statute of Limitations and Settlement

No definition available.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from settlements and lapses of applicable statutes of limitations

+ References

No definition available.

+ Details

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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

+ Details

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- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

+ Details

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- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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