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Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended
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Sep. 30, 2025 | Sep. 30, 2023
Impairment of Long Lived Assets [Line Items] |  |
Asset impairment charges |  | $ 78
Americas Retail Asset Group |  |
Impairment of Long Lived Assets [Line Items] |  |
Asset impairment charges | $ 156 |
Impairment of long-lived assets held-for-use | 81 |
Impairment of intangible assets, finite-lived | 75 |
Subscriber Asset Groups |  |
Impairment of Long Lived Assets [Line Items] |  |
Asset impairment charges | 184 |
Impairment of long-lived assets held-for-use | 94 |
Impairment of intangible assets, finite-lived | $ 90 |
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration] | Restructuring and impairment costs |

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- Definition Indicates line item in statement of income or comprehensive income that includes impairment of long-lived asset held for use. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-2 + Details
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