Share-Based Payments - Narrative (Details) shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2024 USD ($) shares
Long-Term Incentive Plan \| Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserve for future issuance \| shares	116
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Unrecognized compensation cost	$ 16
Period over which unrecognized cost will be recognized, in years	1 year 7 months 6 days
Stock Option \| Minimum vesting from date of retirement eligibility
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	7 months
Stock Options Granted On or After March 1, 2022 \| Vest Ratably Over Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	3 years
Stock Options Granted Before March 1, 2022 \| Vest Ratably Over Four Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	4 years
Restricted Stock Units (RSUs) Granted On or After March 1, 2022 \| Vest Ratably Over Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	3 years
Restricted Stock Units (RSUs) Granted On Or After March 1, 2020 But Before March 1, 2022 \| Vest Ratably Over Four Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	4 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 378
Period over which unrecognized cost will be recognized, in years	1 year 9 months 18 days
Restricted Stock Units (RSUs) \| Vesting period for retirement or disability
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	7 months
Restricted Stock Units (RSUs) \| Minimum vesting from date of retirement eligibility
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	7 months
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	7 months
Unrecognized compensation cost	$ 37
Period over which unrecognized cost will be recognized, in years	1 year 7 months 6 days
Performance Shares \| Vest Ratably Over Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	3 years

Aggregate number of common shares reserved for future issuance.

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