The carrying values of our borrowings as of September 2, 2022 and December 3, 2021 were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (dollars in millions) | Issuance Date | | Due Date | | Effective Interest Rate | | 2022 | | | | 2021 | | | | 1.70% 2023 Notes | February 2020 | | February 2023 | | 1.92% | | $ | 500 | | | | | $ | 500 | | | | | 1.90% 2025 Notes | February 2020 | | February 2025 | | 2.07% | | 500 | | | | | 500 | | | | | 3.25% 2025 Notes | January 2015 | | February 2025 | | 3.67% | | 1,000 | | | | | 1,000 | | | | | 2.15% 2027 Notes | February 2020 | | February 2027 | | 2.26% | | 850 | | | | | 850 | | | | | 2.30% 2030 Notes | February 2020 | | February 2030 | | 2.69% | | 1,300 | | | | | 1,300 | | | | | Total debt outstanding, at par | | $ | 4,150 | | | | | $ | 4,150 | | | | | Current portion of debt, at par | | (500) | | | | | — | | | | | Unamortized discount and debt issuance costs | | (23) | | | | | (27) | | | | | Carrying value of long-term debt | | $ | 3,627 | | | | | $ | 4,123 | | | | | | | | | | | | | | | | | | | Carrying value of current debt, net of unamortized discount and debt issuance costs | | $ | 500 | | | | | $ | — | | | | | | | | | | | | | | | | | | | | | |
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