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Debt - Schedule of Debt (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2025
Debt Instrument [Line Items]
Total long-term debt average term	11 years 8 months 12 days
Total long-term debt average rate	5.10%
Commercial Paper [Member]
Debt Instrument [Line Items]
Short term debt average term	17 days
Weighted average rate	4.70%
Other Senior Secured Debt [Member]
Debt Instrument [Line Items]
Effective interest rate	4.40%
Senior Unsecured Notes Payable Through 2095 [Member]
Debt Instrument [Line Items]
Effective interest rate	5.10%
Payable year	2095

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