Financial Instruments - Additional Information (Detail) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) Customer	Dec. 31, 2022 USD ($) Customer
Debt Instrument [Line Items]
Long-term debt, carrying values	$ 4,344.2	$ 5,040.0
Long-term debt, fair values	$ 3,560.0	$ 4,360.0
Customer Concentration Risk | Accounts Receivable
Debt Instrument [Line Items]
Number of customer accounted for 10% or more of consolidated accounts receivable | Customer	0	0
Customer Concentration Risk | Accounts Receivable | Minimum
Debt Instrument [Line Items]
Percentage of concentration risk	10.00%	10.00%