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Subsequent Events - Additional Information (Detail)
$ in Millions
Jan. 17, 2034
Jan. 17, 2033
Jan. 17, 2032
Feb. 27, 2025
Integer
Jan. 17, 2025
USD ($)
Installments
Jan. 02, 2025
USD ($)
Jul. 31, 2020
Disclosure of non-adjusting events after reporting period [line items]              
Number Of Consecutive Annual Instalments | Installments         3    
Number Of Class Maturing During Period | Integer       59      
Fixed interest rate [member]              
Disclosure of non-adjusting events after reporting period [line items]              
Borrowings, interest rate             2.00%
Repurchase of Debt Notes [Member] | 2008 MTN Program [Member] | Class XXXIX [Member] | July Two Thousand Twenty Five [Member]              
Disclosure of non-adjusting events after reporting period [line items]              
Aggregate notional amount for which offer was announced           $ 757  
Aggregate notional amount for which offer of repurchase was accepted           $ 315  
Percentage of outstanding debt for which repurchase was completed           42.00%  
Issue of Debt Notes [Member] | ClassXXXIV [Member] | January Twenty Thousand Thirty Four [Member]              
Disclosure of non-adjusting events after reporting period [line items]              
Notional amount         $ 1,100    
Borrowings, interest rate         8.25%    
Percentage Of Installment Amoritized 40.00% 30.00% 30.00%        
Issue of Debt Notes [Member] | Fixed interest rate [member] | ClassXXXV [Member] | January Twenty Thousand Twenty seven [Member]              
Disclosure of non-adjusting events after reporting period [line items]              
Borrowings, interest rate       6.25%      
Borrowings, maturity       February 27, 2027      
Number Of Class Maturing During Period | Integer       140      
Issue of Debt Notes [Member] | Fixed interest rate [member] | Class XXXVI [Member] | August Twenty Thousand Twenty Five [Member]              
Disclosure of non-adjusting events after reporting period [line items]              
Borrowings, interest rate       3.50%      
Borrowings, maturity       August 27, 2025