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Inventories (Tables) | 3 Months Ended
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Mar. 31, 2021
Inventory, Net [Abstract] |
Schedule of Inventories | Components of inventories are as follows (in millions):
| March 31, 2021 |  | December 31, 2020
| Current Assets |  | Current Liabilities (a) |  | Inventories, Net |  | Current Assets |  | Current Liabilities (a) |  | Inventories, Net
Separative work units | $ | 14.8 |  |  | $ | 0.1 |  |  | $ | 14.7 |  |  | $ | 17.0 |  |  | $ | 4.6 |  |  | $ | 12.4 |
Uranium | 68.7 |  |  | 13.2 |  |  | 55.5 |  |  | 47.8 |  |  | 0.3 |  |  | 47.5 |
Total | $ | 83.5 |  |  | $ | 13.3 |  |  | $ | 70.2 |  |  | $ | 64.8 |  |  | $ | 4.9 |  |  | $ | 59.9 |
(a)Inventories owed to customers and suppliers, included in current liabilities, include SWU and uranium inventories owed to fabricators.

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