Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 615.5	$ 735.6
Accounts receivable, net	743.4	617.6
Inventories, net of inventory valuation reserves	860.9	893.2
Other current assets	101.8	85.5
Total current assets	2,321.6	2,331.9
Property, plant and equipment:
Property, plant and equipment	5,399.9	4,948.4
Less: accumulated depreciation	(2,151.0)	(2,008.4)
Property, plant and equipment, net	3,248.9	2,940.0
Operating lease right-of-use assets	81.9	92.2
Goodwill	475.3	475.3
Other intangibles, net	415.9	321.6
Equity method investments	409.3	392.9
Other non-current assets	115.9	111.9
Total assets	7,068.8	6,665.8
Current liabilities:
Accounts payable	1,904.9	1,813.8
Current portion of long-term debt	9.5	9.5
Current portion of operating lease liabilities	35.4	43.2
Accrued expenses and other current liabilities	956.0	649.5
Total current liabilities	2,905.8	2,516.0
Non-current liabilities:
Long-term debt, net of current portion	3,091.2	2,755.7
Obligation under Inventory Intermediation Agreement	388.4	408.7
Environmental liabilities, net of current portion	31.8	33.3
Asset retirement obligations	34.7	24.7
Deferred tax liabilities	176.5	214.8
Operating lease liabilities, net of current portion	51.0	54.8
Other non-current liabilities	94.5	82.6
Total non-current liabilities	3,868.1	3,574.6
Stockholders’ equity:
Preferred stock, $0.01 par value, 10,000,000 shares authorized, no shares issued and outstanding	0.0	0.0
Common stock, $0.01 par value, 110,000,000 shares authorized, 78,002,696 shares and 80,127,994 shares issued at June 30, 2025 and December 31, 2024, respectively	0.8	0.8
Additional paid-in capital	1,243.3	1,215.9
Accumulated other comprehensive loss	(4.2)	(4.1)
Treasury stock, 17,575,527 shares, at cost, at June 30, 2025 and December 31, 2024, respectively	(694.1)	(694.1)
Retained earnings	(519.8)	(205.7)
Non-controlling interests in subsidiaries	268.9	262.4
Total stockholders’ equity	294.9	575.2
Total liabilities and stockholders’ equity	$ 7,068.8	$ 6,665.8

Inventory Intermediation Agreement Obligation, Noncurrent

No definition available.

Name:	dk_InventoryIntermediationAgreementObligationNoncurrent
Namespace Prefix:	dk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).