| Summary of Debt Carrying Amount |
The following table summarizes the carrying amount of our borrowings under various financing arrangements: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (in millions) | | Carrying Amount | | Type of Borrowing | | Issue Date | | Maturity Date | | Interest Rate | | June 30, 2024 | | December 31, 2023 | | Senior Unsecured | | March 2014 | | April 2024 | | 3.70% | | $ | — | | | $ | 1,750 | | | Senior Unsecured | | November 2014 | | February 2025 | | 3.50% | | 1,749 | | | 1,749 | | | Senior Unsecured | | September 2015 | | March 2026 | | 3.65% | | 2,746 | | | 2,744 | | | Senior Unsecured | | September 2016 | | March 2027 | | 2.95% | | 1,248 | | | 1,248 | | | Senior Unsecured | | September 2020 | | October 2027 | | 1.20% | | 748 | | | 747 | | | Senior Unsecured | | September 2020 | | October 2030 | | 1.65% | | 995 | | | 994 | | | Senior Unsecured | | September 2023 | | October 2033 | | 5.25% | | 993 | | | 992 | | | Senior Unsecured | | September 2015 | | September 2035 | | 4.60% | | 993 | | | 993 | | | Senior Unsecured | | September 2016 | | September 2036 | | 4.00% | | 743 | | | 743 | | | Senior Unsecured | | September 2020 | | October 2040 | | 2.60% | | 989 | | | 988 | | | Senior Unsecured | | December 2011 | | December 2041 | | 5.65% | | 996 | | | 996 | | | Senior Unsecured | | March 2014 | | April 2044 | | 4.80% | | 1,737 | | | 1,737 | | | Senior Unsecured | | November 2014 | | February 2045 | | 4.50% | | 1,735 | | | 1,734 | | | Senior Unsecured | | September 2015 | | March 2046 | | 4.75% | | 2,223 | | | 2,222 | | | Senior Unsecured | | September 2016 | | March 2047 | | 4.15% | | 1,729 | | | 1,729 | | | Senior Unsecured | | September 2020 | | October 2050 | | 2.80% | | 1,478 | | | 1,478 | | | Senior Unsecured | | September 2023 | | October 2053 | | 5.55% | | 988 | | | 988 | | | Total senior unsecured notes | | 22,091 | | | 23,834 | | | Liability related to future royalties | | 1,159 | | | 1,153 | | | Liability related to assumed financing arrangement | | 99 | | | — | | | Total debt, net | | 23,349 | | | 24,987 | | | Less: Current portion of long-term debt and other obligations, net | | 1,809 | | | 1,798 | | | Total Long-term debt, net | | $ | 21,540 | | | $ | 23,189 | |
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