Other Financial Statement Data (Details) - USD ($) $ in Millions		Mar. 31, 2024	Dec. 31, 2023
Other current assets
Income and other taxes receivable		$ 259.5	$ 269.3
Prepaid expenses		231.9	284.3
Other		11.5	50.2
Total other current assets		502.9	603.8
Restricted Cash Equivalents, Noncurrent		8.0	3.4
Other assets
MRO inventory		173.3	166.3
Marketable securities held in trust		700.5	708.6
Operating Lease, Right-of-Use Asset		224.5	229.8
Indemnification asset		24.7	20.9
Nontrade Receivables, Noncurrent		21.2	21.8
Other		277.2	285.9
Total other assets		1,586.3	1,575.6
Dividends Payable		70.3	72.3
Accrued liabilities
Payroll and employee benefits		124.6	182.6
Asset retirement obligations		389.2	377.4
Customer Advances, Current	[1]	234.5	261.8
Contractual Obligation For Equity Method Investment		76.6	190.0
Operating Lease, Liability, Current		63.0	65.3
Servicing Liability		1.0	0.0
Other		612.3	627.7
Accrued liabilities		1,570.5	1,777.1
Other noncurrent liabilities
Asset retirement obligations		1,812.9	1,836.0
Operating Lease, Liability, Noncurrent		164.8	119.7
Accrued pension and postretirement benefits		117.6	168.1
Unrecognized tax benefits		30.3	30.5
Other		302.4	274.9
Total other noncurrent liabilities		2,428.0	2,429.2
Cloud computing asset		$ 156.9	$ 138.9

[1] The timing of recognition of revenue related to our performance obligations may be different than the timing of collection of cash related to those performance obligations. Specifically, we collect prepayments from certain customers in Brazil. In addition, cash collection from Canpotex may occur prior to delivery of product to the end customer. We generally satisfy our contractual liabilities within one quarter of incurring the liability.