SEGMENT INFORMATION - Reconciliation of Goodwill and Intangible Assets from Segments to Consolidated (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Jun. 30, 2024 |
|---|---|---|
| Segment Reporting Information [Line Items] | ||
| Total Goodwill and intangible assets, net | $ 6,303 | $ 6,284 |
| Dow Jones | ||
| Segment Reporting Information [Line Items] | ||
| Total Goodwill and intangible assets, net | 3,256 | 3,248 |
| Digital Real Estate Services | ||
| Segment Reporting Information [Line Items] | ||
| Total Goodwill and intangible assets, net | 1,798 | 1,828 |
| Book Publishing | ||
| Segment Reporting Information [Line Items] | ||
| Total Goodwill and intangible assets, net | 941 | 914 |
| News Media | ||
| Segment Reporting Information [Line Items] | ||
| Total Goodwill and intangible assets, net | 308 | 294 |
| Other | ||
| Segment Reporting Information [Line Items] | ||
| Total Goodwill and intangible assets, net | $ 0 | $ 0 |