CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
OPERATING ACTIVITIES
Net income	$ 2,434.7	$ 2,648.0	$ 3,411.2
Adjustments to reconcile net earnings to net cash provided from operating activities:
Depreciation, amortization and depletion	833.6	796.3	806.0
Equity earnings of affiliate, net of dividends received	2.6	4.6	(1.1)
Loss (gain) on foreign currency transaction effect	10.4	41.9	(25.8)
(Benefit) provision for deferred income taxes	(59.1)	118.6	(126.3)
Net charges for asset retirement obligations, including accretion	26.1	16.4	17.9
Other, net	14.8	16.9	19.8
Change in operating assets and liabilities:
Decrease (increase) in accounts receivable	253.0	(35.4)	(289.8)
(Increase) decrease in inventories	(60.4)	(7.7)	4.7
Increase (decrease) in accounts payable and accrued liabilities	152.1	(718.0)	558.2
(Increase) in other operating assets and liabilities	(34.7)	(79.1)	(82.4)
Net cash provided by operating activities	3,573.1	2,802.5	4,292.4
INVESTING ACTIVITIES
Capital expenditures	(1,008.6)	(948.5)	(892.3)
Purchase of short-term investments	(808.7)	(486.2)	(1,653.1)
Proceeds on sale of short-term investment	417.7	764.7	1,577.0
Other, net	1.2	3.2	(4.5)
Net cash used in investing activities	(1,398.4)	(666.8)	(972.9)
FINANCING ACTIVITIES
Repayments of debt		(300.0)
Cash dividends paid to common stockholders	(3,092.4)	(2,705.8)	(2,473.8)
Distributions to non-controlling interest	(9.1)	(5.5)	(6.7)
Other, net	0.3	0.3	0.3
Net cash used in financing activities	(3,101.2)	(3,011.0)	(2,480.2)
Effect of exchange rate changes on cash and cash equivalents	8.3	(57.0)	(20.9)
(Decrease) increase in cash and cash equivalents	(918.2)	(932.3)	818.4
Cash and cash equivalents, at beginning of year	2,069.7	3,002.0	2,183.6
Cash and cash equivalents, at end of year	1,151.5	2,069.7	3,002.0
Cash paid during the year for:
Interest	369.7	380.2	380.2
Income taxes	1,434.0	2,391.5	1,947.1
Workers' participation	258.2	450.6	258.4
Supplemental schedule of non-cash operating, investing and financing activities:
Decrease (increase) in pension and other post-retirement benefits	1.0	1.0	(1.7)
Capital expenditures incurred but not yet paid	$ 16.1	$ 18.5	$ 24.6