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Share-Based Compensation - Unrecognized Compensation Cost and Period for Recognition (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Options and SARs |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost related to unvested awards | [1] |  | $ 55 |  |
Weighted average recognition period (years) | [1] |  | 2 years 29 days |  |
Granted (in shares) | [2] |  | 2,172,916 |  |
Premium-priced stock option awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Granted (in shares) |  | 1,750,000 | 1,750,000 |  |
Restricted Common Shares And Restricted Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost related to unvested awards | [1] |  | $ 70 |  |
Weighted average recognition period (years) | [1] |  | 1 year 2 months 15 days |  |
Granted (in shares) |  |  | 982,339 | 825,191 | 1,089,393
Time-vested restricted shares |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Granted (in shares) |  | 300,000 |  |  |
Performance Common Shares and Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost related to unvested awards |  |  | $ 12 |  |
Weighted average recognition period (years) |  |  | 4 months 17 days |  |
Granted (in shares) |  |  | 492,634 | 568,576 | 690,772
[1] | Includes awards granted in connection with 1.75 million premium-priced stock options and 0.3 million time-vested restricted shares granted in November 2024.
[2] | Includes 1.75 million premium-priced stock options with a weighted average exercise price of $161.24 per share.

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Line items represent financial concepts included in a table. 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