Fair Value Measurement	12 Months Ended
Fair Value Measurement	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair value measurement	14. Fair value measurement Fair value is defined as the amount that would be received for selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and is measured using inputs in one of the following three categories: Level 1 measurements are based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access. Valuation of these items does not entail a significant amount of judgment. Level 2 measurements are based on quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active or market data other than quoted prices that are observable for the assets or liabilities. Level 3 measurements are based on unobservable data that are supported by little or no market activity and are significant to the fair value of the assets or liabilities. Considerable judgment may be required in interpreting market data used to develop the estimates of fair value. The carrying values and fair values of the Company’s Long-term debt were $11,535 million and $11,337 million, respectively, at December 31, 2023 and $9,542 million and $8,907 million, respectively, at December 31, 2022. The Company’s Long-term debt obligations are Level 2 instruments whose fair value is derived from quoted market prices. The redeemable noncontrolling interests included in the Consolidated Balance Sheets are marked to fair value on a recurring basis using Level 3 inputs. The redemption value of redeemable noncontrolling interests approximates the fair value and is based on a range of estimated potential outcomes of the expected payment amounts primarily dependent on underlying performance metrics. The unobservable inputs in the valuation include a discount rate determined using a Capital Asset Pricing Model methodology with ranges of between 6.67% and 7.50%. See Note 23 for the changes in the fair value of redeemable noncontrolling interests. The carrying values of the Company’s Cash and cash equivalents, Accounts receivable, net, Current portion of long-term debt, Accounts payable, Accrued expenses, and Other current liabilities approximate their fair values because of the short-term nature of these instruments.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.