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Credit and Other Debt Agreements - Senior Notes - Additional Information (Detail) - USD ($) $ in Millions	Nov. 02, 2023	Mar. 02, 2023	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Periodic payment of interest			6.75%	6.75%
Fixed Rate of 3.50%, Balloon Due May 20, 2051 [Member]
Debt Instrument [Line Items]
Periodic payment of interest			3.50%	3.50%
Fixed Rate of 5.75%, Balloon Due March 2, 2053 [Member]
Debt Instrument [Line Items]
Periodic payment of interest			5.75%	5.75%
Fixed Rate of 2.40%, Balloon Due November 9, 2031 [Member]
Debt Instrument [Line Items]
Periodic payment of interest			2.40%	2.40%
Fixed Rate of 3.05%, Balloon Due March 9, 2052 [Member]
Debt Instrument [Line Items]
Periodic payment of interest			3.05%	3.05%
Unsecured Senior Notes [Member]
Debt Instrument [Line Items]
Notes issued and sold	$ 1,000.0	$ 950.0
Weighted average interest rate	5.97%	5.05%
Realized a cash gain (loss) on hedging transaction	$ 128.0	$ 112.7
Derivative instrument, term	10 years	10 years
Unsecured Senior Notes [Member] | Fixed Rate of 6.50%, Balloon Due May 2, 2034 [Member]
Debt Instrument [Line Items]
Notes issued and sold	$ 400.0
Periodic payment of interest	6.50%
Periodic payments of interest and principal, expiry year	2034
Unsecured Senior Notes [Member] | Fixed Rate of 6.75%, Balloon Due November 2, 2054 [Member]
Debt Instrument [Line Items]
Notes issued and sold	$ 600.0
Periodic payment of interest	6.75%
Periodic payments of interest and principal, expiry year	2054
Unsecured Senior Notes [Member] | Fixed Rate of 5.50%, Balloon Due May 2, 2033 [Member]
Debt Instrument [Line Items]
Notes issued and sold		$ 350.0
Periodic payment of interest		5.50%
Periodic payments of interest and principal, expiry year		2033
Unsecured Senior Notes [Member] | Fixed Rate of 5.75%, Balloon Due March 2, 2053 [Member]
Debt Instrument [Line Items]
Notes issued and sold		$ 600.0
Periodic payment of interest		5.75%
Periodic payments of interest and principal, expiry year		2053

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