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Additional Financial Information (Non-Cash Investing and Financing Activities) (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Non-cash investing activities |  |
Issuance of common shares related to acquisitions and mergers | $ 1,284 |
Non-cash financing activities |  |
Accrued dividends (see Note 12) | 0 | $ 13
Conversions of convertible senior subordinated notes | 0 | 16
Starz |  |
Non-cash investing activities |  |
Issuance of common shares related to acquisitions and mergers | 1,284 | 0
Accrued purchase consideration for dissenting shareholders | 886 | 0
Issuance of Starz share-based payment replacement awards | 187 | 0
Pilgrim Media Group |  |
Non-cash investing activities |  |
Issuance of common shares related to acquisitions and mergers | $ 0 | $ 56

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