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Additional Financial Information (Other Assets) (Details) - USD ($) $ in Millions | Jun. 30, 2018 | Apr. 01, 2018 | [1] | Mar. 31, 2018
--- | --- | --- | --- | ---
Other current assets |  |  |  |
Prepaid expenses and other | $ 66.9 |  |  | $ 34.1
Product inventory | 19.7 |  |  | 20.3
Tax credits receivable | 112.1 |  |  | 141.4
Other current assets | 198.7 |  |  | 195.8
Other non-current assets |  |  |  |
Prepaid expenses and other | 53.3 |  |  | 23.8
Accounts receivable | 285.8 | [1] | $ 257.7 | 325.2
Tax credits receivable | 114.2 |  |  | 109.6
Other non-current assets | $ 453.3 |  |  | $ 458.6
[1] | Included in accounts receivable within non-current other assets in the unaudited condensed consolidated balance sheets.

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