Other Information - Other Current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Other current assets:
Natural gas and NGLs inventory	$ 49.4	$ 44.9
Prepaid expenses and other	34.2	13.8
Other current assets	$ 83.6	$ 58.7

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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