CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash and cash equivalents at beginning of year	$ 1,499,142	$ 439,272	$ 746,724
Cash flows from operating activities:
Net income	1,670,543	2,815,131	199,942
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization	429,944	300,841	254,000
(Gain) loss on change in interest in properties/sale of business, net	(71,190)	8,400	(295,971)
Inventory net realizable value adjustment	604,099	0	0
Stock-based compensation and other	36,545	30,474	20,120
Equity in net income of unconsolidated investments (net of tax)	(1,854,082)	(772,275)	(95,770)
Dividends received from unconsolidated investments and nonmarketable securities	2,000,862	801,239	78,391
Pension and postretirement benefit	(1,658)	(52,254)	(74,010)
Pension and postretirement contributions	(17,866)	(16,112)	(30,253)
Unrealized loss (gain) on investments in marketable securities	39,864	3,279	(3,818)
Loss on early extinguishment of debt	0	19,219	28,955
Deferred income taxes	100,877	93,339	(38,500)
Changes in current assets and liabilities, net of effects of acquisitions and divestitures:
(Increase) in accounts receivable	(350,655)	(786,121)	(49,295)
(Increase) in inventories	(962,924)	(1,609,642)	(127,401)
(Increase) decrease in other current assets	(171,870)	(104,655)	17,411
Increase (decrease) in accrued expenses and income taxes payable	253,518	(201,356)	127,068
Non-cash transfer of 40% value of construction in progress of Kemerton plant to MRL	17,297	122,682	135,928
Other, net	(114,572)	(31,412)	53,521
Net cash provided by operating activities	1,325,321	1,907,849	344,257
Cash flows from investing activities:
Acquisitions, net of cash acquired	(426,228)	(162,239)	0
Capital expenditures	(2,149,281)	(1,261,646)	(953,667)
Cash proceeds from divestitures, net	0	0	289,791
(Purchases) sales of marketable securities, net	(204,451)	1,942	3,774
Investments in equity investments and nonmarkertable securities	(1,200)	(706)	(6,488)
Net cash used in investing activities	(2,781,160)	(1,422,649)	(666,590)
Cash flows from financing activities:
Proceeds from issuance of common stock	0	0	1,453,888
Proceeds from borrowings of long-term debt	356,047	1,964,216	0
Repayments of long-term debt and credit agreements	(28,862)	(705,000)	(1,173,823)
Other borrowings (repayments), net	617,014	(391,662)	60,991
Fees related to early extinguishment of debt	0	(9,767)	(24,877)
Dividends paid to shareholders	(187,188)	(184,429)	(177,853)
Dividends paid to noncontrolling interests	(105,631)	(44,208)	(96,136)
Proceeds from exercise of stock options	190	2,783	18,392
Withholding taxes paid on stock-based compensation award distributions	(27,468)	(13,338)	(8,140)
Other	(191)	(6,708)	(2,230)
Net cash provided by financing activities	623,911	611,887	50,212
Net effect of foreign exchange on cash and cash equivalents	222,686	(37,217)	(35,331)
(Decrease) increase in cash and cash equivalents	(609,242)	1,059,870	(307,452)
Cash and cash equivalents at end of year	889,900	1,499,142	439,272
Nonrelated Party
Changes in current assets and liabilities, net of effects of acquisitions and divestitures:
(Decrease) increase in accounts payable to third parties	(315,220)	816,194	126,563
Related Party
Changes in current assets and liabilities, net of effects of acquisitions and divestitures:
(Decrease) increase in accounts payable to third parties	$ 31,809	$ 470,878	$ 17,376