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Award Timing Disclosure	12 Months Ended
Award Timing Disclosure	Dec. 31, 2024
Award Timing Disclosures [Line Items]
Award Timing MNPI Disclosure	The HRCC has adopted a policy with respect to equity awards that contains procedures to prevent stock option backdating or other timing issues. Under the policy, the HRCC has exclusive authority to grant equity awards to our executive officers. The policy provides that the HRCC will approve annual equity grants to employees at a meeting prior to March 1 of each year, with the dollar amount for such awards to be set at such meeting and grants to be made effective as of and with an exercise price reflecting the closing price of our Class A common stock on the NYSE on March 1 of each year. If March 1 falls on a weekend, the exercise price for any stock options granted will be the closing price of the stock on the last trading day prior to March 1. Grants of equity awards to new or newly promoted employees or for other special events may be made at other times in the year. These off-cycle grants are issued using an exercise price that reflects the closing price of our Class A common stock on the effective date of the grant. The HRCC does not take material nonpublic information into account when determining the timing and terms of stock options or other equity awards, and the company has not timed the disclosure of material nonpublic information for the purpose of affecting the value of executive compensation.
Award Timing Method	The policy provides that the HRCC will approve annual equity grants to employees at a meeting prior to March 1 of each year, with the dollar amount for such awards to be set at such meeting and grants to be made effective as of and with an exercise price reflecting the closing price of our Class A common stock on the NYSE on March 1 of each year. If March 1 falls on a weekend, the exercise price for any stock options granted will be the closing price of the stock on the last trading day prior to March 1. Grants of equity awards to new or newly promoted employees or for other special events may be made at other times in the year. These off-cycle grants are issued using an exercise price that reflects the closing price of our Class A common stock on the effective date of the grant
Award Timing Predetermined	true
Award Timing MNPI Considered	false
Award Timing, How MNPI Considered	The HRCC does not take material nonpublic information into account when determining the timing and terms of stock options or other equity awards, and the company has not timed the disclosure of material nonpublic information for the purpose of affecting the value of executive compensation.
MNPI Disclosure Timed for Compensation Value	false