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Stock-Based Compensation - Narrative (Details) - Restricted Stock and Unit Awards - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 6 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock-based compensation expense | $ 82 | $ 97
Restricted stock and unit awards granted in period (shares) | 0.4 |
Weighted-average grant fate fair value (USD per share) | $ 423.01 |
Unrecognized compensation expense | $ 253 |
Weighted average recognition period | 1 year 4 months 24 days |

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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