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Significant Accounting Policies (Narrative) (Detail) $ in Millions | 3 Months Ended
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Sep. 30, 2018 USD ($)
Accounting Policy [Line Items] |
Out of Period Adjustment | $ 6
Second Quarter 2018 Reporting Period [Member] |
Accounting Policy [Line Items] |
Out of Period Adjustment | 3
First Quarter 2017 Reporting Period [Member] |
Accounting Policy [Line Items] |
Out of Period Adjustment | $ 3

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- Definition Amount of each individual error being corrected in the correcting adjustment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 1.N) -URI http://asc.fasb.org/extlink&oid=26874127&loc=d3e30840-122693 + Details
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