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Description of Business and Summary of Significant Accounting Policies - Narrative (Details) $ / shares in Units, shares in Millions, $ in Millions			1 Months Ended				3 Months Ended	12 Months Ended
	Feb. 20, 2026 USD ($)	Mar. 06, 2024 shares	Jul. 31, 2025 shares	Mar. 31, 2025 shares	Dec. 31, 2024 USD ($) $ / shares shares	Apr. 30, 2024 USD ($)	Dec. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2025 USD ($) segment $ / shares	Dec. 31, 2024 USD ($) $ / shares	Dec. 31, 2023 USD ($)	Jan. 31, 2018 $ / shares
Accounting Policies [Line Items]
Treasury stock, shares, acquired (in shares) | shares			2	18	15		12
Number of operating segments | segment								1
Number of reportable segments | segment								1
Revenue from contract with customer, term of customer relationship								15 years
Accelerated method, average declining balance rate								250.00%
Advertising expense								$ 98	$ 105	$ 131
Money market funds, at carrying value					$ 90		$ 1	$ 1	90
Origin AI | Subsequent Event
Accounting Policies [Line Items]
Cash purchase price	$ 170
First Five Years
Accounting Policies [Line Items]
Accelerated method, average amortization rate								55.00%
Second Five Years
Accounting Policies [Line Items]
Accelerated method, average amortization rate								25.00%
Final Five Years
Accounting Policies [Line Items]
Accelerated method, average amortization rate								20.00%
First Lien Credit Agreement | Line of Credit
Accounting Policies [Line Items]
Proceeds from (repayments of) debt									$ 704	$ 230
2020 Receivables Facility
Accounting Policies [Line Items]
Proceeds from (repayments of) secured debt						$ 32
March 6th Underwriters | Related Party
Accounting Policies [Line Items]
Treasury stock, shares, acquired (in shares) | shares		15
Class B Common Stock
Accounting Policies [Line Items]
Common stock, par value (in dollars per share) | $ / shares					$ 0.01		$ 0.01	$ 0.01	$ 0.01		$ 0.01

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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