SEGMENT INFORMATION - Reconciliation of Goodwill and Intangible Assets from Segments to Consolidated (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Jun. 30, 2025 |
|---|---|---|
| Segment Reporting [Line Items] | ||
| Total Goodwill and intangible assets, net | $ 6,379 | $ 6,303 |
| Dow Jones | ||
| Segment Reporting [Line Items] | ||
| Total Goodwill and intangible assets, net | 3,244 | 3,256 |
| Digital Real Estate Services | ||
| Segment Reporting [Line Items] | ||
| Total Goodwill and intangible assets, net | 1,931 | 1,798 |
| Book Publishing | ||
| Segment Reporting [Line Items] | ||
| Total Goodwill and intangible assets, net | 907 | 941 |
| News Media | ||
| Segment Reporting [Line Items] | ||
| Total Goodwill and intangible assets, net | 297 | 308 |
| Other | ||
| Segment Reporting [Line Items] | ||
| Total Goodwill and intangible assets, net | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount, after accumulated amortization, of finite- and indefinite-lived intangible assets, goodwill, and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|