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Commitments - Summary of Contractual Obligations (Parenthetical) (Detail)
$ in Millions
 12 Months Ended
Dec. 31, 2024
USD ($)
Disclosure of Detailed Information About Borrowings [Line Items]  
Future minimum lease payments $ 1,171
Estimated annual benefit payment period next ten years
1-3 years [Member]  
Disclosure of Detailed Information About Borrowings [Line Items]  
Future minimum lease payments $ 352
3-5 Years [Member]  
Disclosure of Detailed Information About Borrowings [Line Items]  
Future minimum lease payments $ 209