Inventories - Additional Information (Details) bbl in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021 vlcc	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) vlcc bbl
Inventory [Line Items]
Cost of crude oil | $		$ 52	$ 226
Very Large Crude Carriers (VLCCs)
Inventory [Line Items]
Cost of crude oil | $			$ 164
Crude oil loaded in very large crude carriers (in barrels of oil) | bbl			4.2
Number of very large crude carriers | vlcc			2
Number of VLCCs cargos sold | vlcc	2