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Benefit Plans - Share Based Payment Expense (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Share-based payment expense | $ 50 | $ 48
Programming and content |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Share-based payment expense | 9 | 9
Customer service and billing |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Share-based payment expense | 1 | 1
Transmission |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Share-based payment expense | 2 | 1
Sales and marketing |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Share-based payment expense | 14 | 12
Product and technology |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Share-based payment expense | 10 | 12
General and administrative |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Share-based payment expense | $ 14 | $ 13

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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