| Schedule of Long-term Debt Instruments |
The following table provides a summary of the Company's outstanding debt and the fair values based on quoted market prices in less active markets as of March 31, 2026 and December 31, 2025: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Principal Amount at Par | | | | | | Level 2 Fair Value as of | | | March 31, 2026 | | December 31, 2025 | | Issuance Date | | Maturity | | March 31, 2026 | | December 31, 2025 | | | (in millions) | | | | | | (in millions) | 4.375% Senior Notes | | 1,000 | | | 1,000 | | | October 2016 | | November 2026 | | 1,002 | | | 1,006 | | 3.625% Senior Notes(1) | | 1,497 | | | 1,526 | | | May 2017 | | May 2027 | | 1,508 | | | 1,550 | | 4.875% Senior Notes | | 1,600 | | | 1,600 | | | October 2017 | | April 2028 | | 1,621 | | | 1,634 | | 5.875% Senior Notes | | 1,900 | | | 1,900 | | | April 2018 | | November 2028 | | 1,978 | | | 1,998 | | 4.625% Senior Notes(1) | | 1,267 | | | 1,292 | | | October 2018 | | May 2029 | | 1,313 | | | 1,363 | | 6.375% Senior Notes | | 800 | | | 800 | | | October 2018 | | May 2029 | | 848 | | | 857 | | 3.875% Senior Notes(1) | | 1,382 | | | 1,409 | | | April 2019 | | November 2029 | | 1,404 | | | 1,455 | | 5.375% Senior Notes | | 900 | | | 900 | | | April 2019 | | November 2029 | | 929 | | | 939 | | 3.625% Senior Notes(1) | | 1,267 | | | 1,292 | | | October 2019 | | June 2030 | | 1,277 | | | 1,322 | | 4.875% Senior Notes | | 1,000 | | | 1,000 | | | October 2019 | | June 2030 | | 1,015 | | | 1,025 | | 4.900% Senior Notes | | 1,000 | | | 1,000 | | | August 2024 | | August 2034 | | 1,008 | | | 1,025 | | 5.400% Senior Notes | | 800 | | | 800 | | | August 2024 | | August 2054 | | 775 | | | 777 | | | | $ | 14,413 | | | $ | 14,519 | | | | | | | $ | 14,678 | | | $ | 14,951 | |
(1) The following Senior Notes have a principal amount denominated in Euro: 3.625% Senior Notes for €1,300 million, 4.625% Senior Notes for €1,100 million, 3.875% Senior Notes for €1,200 million, and 3.625% Senior Notes for €1,100 million.
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