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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]      
Operating loss carryforwards $ 819.0    
Indefinite operating loss carryforwards 762.0    
Gain (loss) on sale of stock in subsidiary or equity method investee 537.0    
Unrecognized tax benefits 461.0 [1] $ 588.0 [1] $ 647.0
Effective tax rate adjustment 425.0    
Reasonably possible decrease in unrecognized tax benefit within the next 12 months 45.0    
Accrued interest and penalties related to income tax matters $ 17.0 25.0  
Provision for income taxes, interest and penalties expense related to tax matters     $ 91.0
Other Tax Expense (Benefit)   $ 239.0  
[1] Of this amount, $421 million and $319 million are included in Long-term income taxes for 2024 and 2023, respectively, and $40 million and $269 million are included in Income taxes for 2024 and 2023, respectively, on the Consolidated Balance Sheet.