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Segment Information (Segment Information By Business Unit) (Details) $ in Millions | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Dec. 31, 2016 USD ($) segment | Dec. 31, 2015 USD ($) | Sep. 30, 2016 segment | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Number of reportable business segments | segment | 3 |  | 2 |  |
Segment revenues | $ 752 | $ 671 |  | $ 1,945 | $ 1,556
Gross contribution | 150 | 67 |  | 251 | 205
Segment general and administration | 41 | 26 |  | 111 | 78
Segment profit (loss) | 109 | 41 |  | 140 | 127
Reportable Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Segment profit (loss) | 109 | 41 |  | 140 | 127
Reportable Segments | Motion Pictures |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Segment revenues | 440 | 506 |  | 1,266 | 1,135
Gross contribution | 77 | 51 |  | 153 | 157
Segment general and administration | 26 | 18 |  | 74 | 60
Segment profit (loss) | 51 | 33 |  | 79 | 97
Reportable Segments | Television Production |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Segment revenues | 229 | 165 |  | 595 | 421
Gross contribution | 33 | 17 |  | 70 | 49
Segment general and administration | 7 | 5 |  | 23 | 15
Segment profit (loss) | 26 | 12 |  | 47 | 34
Reportable Segments | Media Networks |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Segment revenues | 85 | 0 |  | 86 | 0
Gross contribution | 41 | (1) |  | 29 | (1)
Segment general and administration | 8 | 3 |  | 14 | 3
Segment profit (loss) | 33 | (4) |  | 15 | (4)
Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Segment revenues | (2) | 0 |  | (2) | 0
Gross contribution | (1) | 0 |  | (1) | 0
Segment profit (loss) | $ (1) | $ 0 |  | $ (1) | $ 0

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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