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Royalties And Licenses (Schedule Of Royalty-Related Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Mar. 31, 2020
--- | --- | ---
Royalties and Licenses |  |
Royalty-related assets | $ 46 | $ 99
Other Current Assets |  |
Royalties and Licenses |  |
Royalty-related assets | 25 | 74
Other assets |  |
Royalties and Licenses |  |
Royalty-related assets | $ 21 | $ 25

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- Details
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- Details
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