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Earnings Per Share and Certain Related Information - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Sep. 23, 2021	Jul. 14, 2021	Apr. 22, 2021	Jan. 27, 2021	Oct. 30, 2020	Jul. 09, 2020	May 05, 2020	Jan. 16, 2020	Oct. 01, 2021	Jan. 17, 2019
Class of Stock [Line Items]
Dividends declared (in dollars per share)	$ 0.21	$ 0.21	$ 0.21	$ 0.21	$ 0.19	$ 0.19	$ 0.19	$ 0.19
2019 Stock Repurchase Program
Class of Stock [Line Items]
Amount authorized to be repurchased										$ 1,000.0
Remaining authorized repurchase amount									$ 0.0
2020 Stock Repurchase Program
Class of Stock [Line Items]
Amount authorized to be repurchased								$ 1,000.0
Remaining authorized repurchase amount									782.9
Accelerated Share Repurchase Program
Class of Stock [Line Items]
Amount authorized to be repurchased									$ 250.0

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Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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