Divestiture - Balance Sheet at Fair Value (Details) - Disposed of by Sale - Lumen Mass Markets fiber-to-the-home business $ in Millions	Feb. 02, 2026 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other current liabilities	$ 29
Current portion of deferred revenue	52
Deferred revenue	406
Other liabilities	48
Total liabilities	$ 535

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