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Stock-Based Compensation (Schedule of Stock Based Compensation Activity) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Number of Shares |  |
Ending balance (in shares) | 475 |
Weighted Average Grant Date Fair Value |  |
Cost not yet recognized | $ 35 |
Period for recognition | 1 year 3 months 18 days |
Time-based RSUs |  |
Number of Shares |  |
Beginning balance (in shares) | 306 |
Granted (in shares) | 286 |
Vested (in shares) | (77) |
Forfeited (in shares) | (40) |
Outstanding and expected to vest (in shares) | 475 |
Weighted Average Grant Date Fair Value |  |
Beginning balance (in usd per share) | $ 143.25 |
Granted (in usd per share) | 65.23 |
Vested (in usd per share) | 154.79 |
Forfeited (in usd per share) | 108.88 |
Ending balance (in usd per share) | 97.36 |
Outstanding and expected to vest (in usd per share) | $ 97.36 |
Outstanding and expected to vest, weighted average remaining contractual term (in years) | 1 year 2 months 12 days |
Aggregate intrinsic value, outstanding and expected to vest | $ 76 |
Fair value vested in period | $ 24 | $ 32
Performance-based RSUs |  |
Number of Shares |  |
Beginning balance (in shares) | 315 |
Granted (in shares) | 433 |
Vested (in shares) | (63) |
Forfeited (in shares) | (128) |
Ending balance (in shares) | 557 |
Outstanding and expected to vest (in shares) | 192 |
Weighted Average Grant Date Fair Value |  |
Beginning balance (in usd per share) | $ 159.62 |
Granted (in usd per share) | 64.10 |
Vested (in usd per share) | 192.76 |
Forfeited (in usd per share) | 132.20 |
Ending balance (in usd per share) | 87.91 |
Outstanding and expected to vest (in usd per share) | $ 67.97 |
Outstanding and expected to vest, weighted average remaining contractual term (in years) | 1 year 7 months 6 days |
Outstanding, weighted average remaining contractual terms (in years) | 1 year 7 months 6 days |
Aggregate intrinsic value, outstanding and expected to vest | $ 31 |
Aggregate intrinsic value outstanding | $ 89 |
Time -Based RSU |  |
Weighted Average Grant Date Fair Value |  |
Granted (in usd per share) |  | $ 111.39
Performance-Based RSU |  |
Weighted Average Grant Date Fair Value |  |
Granted (in usd per share) |  | $ 112.44

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + 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)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued 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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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + 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)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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