Share-based Compensation (Awards Granted and Converted During Period) (Details) shares in Millions	9 Months Ended
Sep. 30, 2020 $ / shares shares
PRSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted, Awards (in shares) \| shares	0.5
Awards granted, weighted-average grant price (in dollars per share) \| $ / shares	$ 25.70
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted, Awards (in shares) \| shares	4.4
Awards granted, weighted-average grant price (in dollars per share) \| $ / shares	$ 25.58
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, granted (in shares) \| shares	1.3
Stock options, weighted-average grant price (in dollars per share) \| $ / shares	$ 25.70

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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 (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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

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- Definition

Net number of share options (or share units) granted during the period.

+ 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 (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

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