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Shareholders' Equity - Share-based Compensation, Awards, Unrecognized Compensation (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation | $ 36
Restricted Stock Units (RSUs) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation | $ 21
Awards Compensation Costs Remaining Weighted Average Vesting Term, (Years) | 11 months
Performance Shares [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation | $ 15
Awards Compensation Costs Remaining Weighted Average Vesting Term, (Years) | 9 months

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- Definition Share Based Compensation, Awards, Nonvested, Unrecognized Compensation Costs, Remaining Weighted Average Vesting Period (years). + References No definition available. + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + 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 (i) -URI http://asc.fasb.org/extlink&oid=109197908&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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- Details
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- Details
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