CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities:
Net income	$ 613	$ 396
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	681	613
Asset impairments	1	10
Lower of cost or market inventory valuation adjustments	97	(20)
Earnings of equity method investments, net of distributions	(6)	(7)
Loss on early extinguishment of debt	24	0
Gain on sale of assets	(1)	(2)
Loss on sale of equity method investment	40	0
Deferred income tax expense (benefit)	54	(54)
Equity-based compensation expense	20	15
Change in fair value – derivative instruments	41	(10)
(Increase) decrease in current assets:
Accounts receivable	(73)	395
Inventories	(65)	248
Income taxes receivable	53	9
Prepayments and other	18	23
Increase (decrease) in current liabilities:
Accounts payable	(16)	(184)
Income taxes payable	9	11
Accrued liabilities	157	43
Turnaround expenditures	(315)	(259)
Other, net	(25)	23
Net cash provided by operating activities	1,307	1,250
Cash flows from investing activities:
Additions to properties, plants and equipment	(318)	(297)
Proceeds from sale of assets	5	2
Other, net	(28)	0
Net cash used for investing activities	(341)	(295)
Cash flows from financing activities:
Repayments under credit agreements	(350)	(106)
Proceeds from issuance of senior notes	1,890	0
Redemption of senior notes	(1,416)	0
Purchase of treasury stock, inclusive of excise tax	(216)	(668)
Dividends	(284)	(291)
Distributions to noncontrolling interests	(9)	(6)
Proceeds from commercial financing arrangements	103	0
Payments on finance leases	(12)	(8)
Deferred financing costs	(25)	0
Other, net	(4)	0
Net cash used for financing activities	(323)	(1,079)
Effect of exchange rate on cash flow	8	(1)
Cash and cash equivalents:
Net change for the period	651	(125)
Cash and cash equivalents at beginning of period	800	1,354
Cash and cash equivalents at end of period	1,451	1,229
Cash received (paid) during the period for:
Interest	(127)	(105)
Income taxes, net	5	(86)
Decrease in accrued and unpaid capital expenditures	$ 0	$ (10)