Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities
Net earnings (loss) including noncontrolling interest	$ 1,634.9	$ 665.6	$ (1,090.8)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation, depletion and amortization	812.9	847.6	882.7
Business Combination, Inventory Acquired, Amortization of Fair Value Adjustment	0.0	0.0	(5.5)
Deferred and other income taxes	98.8	(684.0)	(261.3)
Equity in net (earnings) loss of nonconsolidated companies, net of dividends	(2.1)	97.1	64.6
Accretion expense for asset retirement obligations	71.9	68.0	62.4
Accretion expense for leases	13.4	24.2	18.6
Share-based compensation expense	29.5	17.8	27.9
Goodwill, Impairment Loss	0.0	0.0	588.6
Unrealized (gain) loss on derivatives	7.2	(26.6)	(59.2)
Foreign Currency Transaction Loss, before Tax		(14.1)	(50.1)
Foreign Currency Transaction Gain (Loss), before Tax	(2.6)
Proceeds from Sale of Securities, Operating Activities	0.0	34.7	0.0
Closure costs	158.1	0.0	871.0
(Gain) loss on disposal of fixed assets	(5.3)	16.3	18.7
Other	0.0	(19.1)	(3.2)
Changes in assets and liabilities:
Receivables, net	(683.6)	(153.6)	34.6
Inventories, net	(1,067.9)	191.4	128.1
Other current assets and noncurrent assets	(18.0)	66.1	(36.0)
Accounts payable and accrued liabilities	995.1	333.3	(175.2)
Other noncurrent liabilities	144.7	89.7	(20.7)
Net cash provided by operating activities	2,187.0	1,582.6	1,095.4
Cash Flows from Investing Activities
Capital expenditures	(1,288.6)	(1,170.6)	(1,272.2)
Purchases of available-for-sale securities - restricted	(433.6)	(618.7)	(557.6)
Proceeds from sale of available-for-sale securities - restricted	410.1	607.2	533.2
Proceeds from sale of assets	28.1	0.0	4.0
Payments to acquire businesses, gross	(24.1)	0.0	(55.1)
Payments to acquire held-to-maturity securities	(3.2)	(6.1)	(15.4)
Proceeds from sale of held-to-maturity securities	0.8	1.7	2.3
Other	(11.8)	(3.0)	(0.1)
Net cash used in investing activities	(1,322.3)	(1,189.5)	(1,360.9)
Cash Flows from Financing Activities
Repayments of Other Short-term Debt	726.6	1,542.5	554.2
Proceeds from Other Short-term Debt	1,029.3	1,521.1	591.0
Payments of structured accounts payable arrangements	(1,028.4)	(1,156.2)	(977.1)
Proceeds from structured accounts payable arrangements	1,122.7	1,037.4	1,124.2
Collections of transferred receivables	445.0	0.0	0.0
Payments of transferred receivables	(363.9)	0.0	0.0
Payments of long-term debt	(608.3)	(66.9)	(48.3)
Proceeds from issuance of long-term debt	0.0	4.7	0.0
Repurchases of stock	(410.9)	0.0	(149.9)
Cash dividends paid	(103.7)	(75.8)	(67.2)
Payments of Ordinary Dividends, Noncontrolling Interest	(31.3)	(0.6)	(0.7)
Other	(6.0)	(5.0)	0.0
Net cash used in financing activities	(682.1)	(283.8)	(82.2)
Effect of exchange rate changes on cash	9.3	(47.2)	9.0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	191.9	62.1	(338.7)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents - Beginning of Period	594.4	532.3	871.0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents - End of Period	786.3	594.4	532.3
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	769.5	574.0	519.1
Restricted cash in other current assets	8.3	8.1	7.8
Restricted cash in other assets	8.5	12.3	5.4
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents - End of Period	$ 786.3	$ 594.4	$ 532.3