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Accounting Policies - Revenue Adoption Retained Earnings Adjustment (Details) - ASU 2014-09 $ in Millions | Jan. 01, 2018 USD ($)
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Retained earnings adjustment |
Retained earnings adjustment net of tax | $ (13)
Retained earnings adjustment before of tax | $ (17)

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- Definition Amount of the cumulative effect on retained earnings net of related income tax effect. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22663-107794 + Details
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