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Share-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019
Share repurchase program |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Dividends per share (in USD per share) | $ 0.23 | $ 0.69
Performance based restricted stock units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Award grants in period (in shares) | 1.3 |
Aggregate grant date fair value of stock-based compensation arrangement | $ 29 |
Share-based awards vesting period | 3 years |
Time-based restricted stock units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Award grants in period (in shares) | 0.7 |
Aggregate grant date fair value of stock-based compensation arrangement | $ 13 |
Share-based awards vesting period | 3 years |
Time-based stock options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Award grants in period (in shares) | 1.1 |
Aggregate grant date fair value of stock-based compensation arrangement | $ 6 |
Share-based awards vesting period | 3 years |

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- Definition The per share amount of a dividend declared, but not paid, as of the financial reporting date. + 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=98513485&loc=d3e4304-108586 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition 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). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + 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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