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Fair Value of Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2025
Fair Value Disclosures [Abstract] |
Carrying Values and Fair Values of Debt Instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Carrying Value at | ​ | Fair Value (a) at
​ | ​ | March 31, | ​ | December 31, | ​ | March 31, | ​ | December 31,
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024
4.25% Senior Notes due 2028 | ​ | $ | 500,000 | ​ | $ | 500,000 | ​ | $ | 495,200 | ​ | $ | 488,500
3.50% Senior Notes due 2029 | ​ | $ | 500,000 | ​ | $ | 500,000 | ​ | $ | 480,650 | ​ | $ | 471,450
4.50% Senior Notes due 2029 | ​ | $ | 347,800 | ​ | $ | 347,500 | ​ | $ | 362,846 | ​ | $ | 359,168
2.60% Senior Notes due 2030 | ​ | $ | 600,000 | ​ | $ | 600,000 | ​ | $ | 546,420 | ​ | $ | 536,220
2.20% Senior Notes due 2032 | ​ | $ | 650,000 | ​ | $ | 650,000 | ​ | $ | 548,340 | ​ | $ | 535,275
3.20% Senior Notes due 2032 | ​ | $ | 500,000 | ​ | $ | 500,000 | ​ | $ | 446,950 | ​ | $ | 437,150
4.20% Senior Notes due 2033 | ​ | $ | 750,000 | ​ | $ | 750,000 | ​ | $ | 711,075 | ​ | $ | 696,300
5.00% Senior Notes due 2034 | ​ | $ | 750,000 | ​ | $ | 750,000 | ​ | $ | 745,050 | ​ | $ | 731,625
3.05% Senior Notes due 2050 | ​ | $ | 500,000 | ​ | $ | 500,000 | ​ | $ | 327,550 | ​ | $ | 321,700
2.95% Senior Notes due 2052 | ​ | $ | 850,000 | ​ | $ | 850,000 | ​ | $ | 535,840 | ​ | $ | 528,955
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| (a) | Senior Notes are classified as Level 2 within the fair value hierarchy. Fair value inputs include third-party calculations of the market interest rate of notes with similar ratings in similar industries over the remaining note terms.

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 + Details
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- References No definition available. + Details
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