Disposals - Additional information (Detail) - USD ($) $ in Millions |
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure In Entirety Of Divestitures [Line Items] | |||
| Cash consideration received on disposal of business | $ 254 | $ 326 | |
| Contingent Receivables [Member] | |||
| Disclosure In Entirety Of Divestitures [Line Items] | |||
| Cash consideration received on disposal of business | $ 88 | ||
| FindLaw [member] | |||
| Disclosure In Entirety Of Divestitures [Line Items] | |||
| Proceeds from sale of subsidiaries | 410 | ||
| FindLaw and other businesses [member] | |||
| Disclosure In Entirety Of Divestitures [Line Items] | |||
| Cash consideration received on disposal of business | 297 | ||
| Gains (losses) recognised when control in subsidiary is lost | $ 196 | ||