Other Financial Statement Data (Tables)

12 Months Ended

Dec. 31, 2023

Balance Sheet Related Disclosures [Abstract]

Schedule of Other Assets and Other Liabilities

The following provides additional information concerning selected balance sheet accounts:


	December 31,
(in millions)	2023		2022
Receivables
Trade - External	$	940.9	$	1,242.8
Trade - Affiliate	194.6		249.6
Non-trade	134.4		208.4
	1,269.9		1,700.8
Less allowance for doubtful accounts	0.7		0.9
	$	1,269.2	$	1,699.9
Inventories
Raw materials	$	135.8	$	177.2
Work in process	964.8		844.8
Finished goods	1,178.0		2,158.3
Final price deferred (a)	61.5		184.2
Operating materials and supplies	183.1		178.6
	$	2,523.2	$	3,543.1
Other current assets

Income and other taxes receivable	$	269.3	$	189.4
Prepaid expenses	284.3		237.4
Assets held for sale	—		101.9
Other	50.2		49.5
	$	603.8	$	578.2
Other assets
Restricted cash	$	3.4	$	10.5
MRO inventory	166.3		141.9
Marketable securities held in trust - restricted	708.6		666.0
Operating lease right-of-use assets	229.8		182.5
Indemnification asset	20.9		23.7
Long-term receivable	21.8		26.9
Cloud computing cost (b)	138.9		32.9
Other	285.9		311.8
	$	1,575.6	$	1,396.2


	December 31,
(in millions)	2023		2022
Accrued liabilities
Accrued dividends	$	72.3	$	72.9
Payroll and employee benefits	182.6		237.0
Asset retirement obligations	377.4		212.3
Customer prepayments	261.8		743.9
Accrued income and other taxes	190.0		208.3
Operating lease obligation	65.3		50.7

Other	627.7		754.8
	$	1,777.1	$	2,279.9
Other noncurrent liabilities
Asset retirement obligations	$	1,836.0	$	1,693.3
Operating lease obligation	168.1		135.2
Accrued pension and postretirement benefits	119.7		103.3
Unrecognized tax benefits	30.5		32.5
Other	274.9		271.7
	$	2,429.2	$	2,236.0

______________________________

(a)Final price deferred is product that has shipped to customers, but we retain control and do not recognize revenue until a sales contract has been agreed to with the customer.

(b)Implementation costs eligible for capitalization related to cloud computing arrangements that are a service contract are recorded within Prepaid expenses and Other assets in the Consolidated Balance Sheets and amortized over the reasonably certain term of the associated hosting arrangement. Capitalized implementation costs expensed were not material in 2023.

Schedule of Other Nonoperating Income (Expense)

Interest expense, net was comprised of the following in 2023, 2022 and 2021:


	Years Ended December 31,
(in millions)	2023		2022		2021
Interest income	$	59.6	$	31.0	$	25.2
Less interest expense	189.0		168.8		194.3
Interest expense, net	$	(129.4)	$	(137.8)	$	(169.1)