Long-term debt outstanding | The company’s long-term debt outstanding at year-end 2016 and 2015 was as follows: | | | | | | | | | | | | | | | | | At December 31 | | | 2016 | | | | 2015 | | | Principal |
| Unamortized discounts and debt issuance costs |
| | | Principal |
| Unamortized discounts and debt issuance costs |
| 3.191% notes due 2023 | $ | 2,250 |
| $ | 4 |
| | | $ | 2,250 |
| $ | 4 |
| 2.954% notes due 2026 | 2,250 |
| 6 |
| | | — |
| — |
| Floating rate notes due 2017 (1.091%)1 | 2,050 |
| 1 |
| | | 2,050 |
| 2 |
| 1.104% notes due 2017 | 2,000 |
| 1 |
| | | 2,000 |
| 2 |
| 1.718% notes due 2018 | 2,000 |
| 1 |
| | | 2,000 |
| 2 |
| 2.355% notes due 2022 | 2,000 |
| 5 |
| | | 2,000 |
| 5 |
| 1.365% notes due 2018 | 1,750 |
| 1 |
| | | 1,750 |
| 2 |
| 1.961% notes due 2020 | 1,750 |
| 2 |
| | | 1,750 |
| 2 |
| Floating rate notes due 2018 (1.310%)1 | 1,650 |
| 2 |
| | | 800 |
| 1 |
| 4.95% notes due 2019 | 1,500 |
| 2 |
| | | 1,500 |
| 2 |
| 1.561% notes due 2019 | 1,350 |
| 2 |
| | | — |
| — |
| 2.100% notes due 2021 | 1,350 |
| 2 |
| | | — |
| — |
| 1.790% notes due 2018 | 1,250 |
| 1 |
| | | 1,250 |
| 2 |
| 2.419% notes due 2020 | 1,250 |
| 2 |
| | | 1,250 |
| 2 |
| 1.345% notes due 2017 | 1,100 |
| — |
| | | 1,100 |
| 2 |
| 1.344% notes due 2017 | 1,000 |
| 1 |
| | | 1,000 |
| 1 |
| 2.427% notes due 2020 | 1,000 |
| 1 |
| | | 1,000 |
| 2 |
| 2.193% notes due 2019 | 750 |
| 1 |
| | | 750 |
| 1 |
| 2.566% notes due 2023 | 750 |
| 1 |
| | | — |
| — |
| 3.326% notes due 2025 | 750 |
| 2 |
| | | 750 |
| 2 |
| 2.411% notes due 2022 | 700 |
| 1 |
| | | 700 |
| 1 |
| Floating rate notes due 2021 (1.599%)1 | 650 |
| 1 |
| | | 400 |
| 1 |
| Floating rate notes due 2019 (1.316%)2 | 400 |
| 1 |
| | | 400 |
| 2 |
| Floating rate notes due 2022 (1.472%)2 | 350 |
| — |
| | | 350 |
| 1 |
| Amortizing bank loan due 2018 (1.527%)1 | 178 |
| — |
| | | 110 |
| — |
| 8.625% debentures due 2032 | 147 |
| 1 |
| | | 147 |
| 1 |
| 8.625% debentures due 2031 | 108 |
| 1 |
| | | 108 |
| 1 |
| 8% debentures due 2032 | 75 |
| 1 |
| | | 74 |
| 1 |
| 9.75% debentures due 2020 | 54 |
| — |
| | | 54 |
| — |
| 8.875% debentures due 2021 | 40 |
| — |
| | | 40 |
| — |
| Medium-term notes, maturing from 2021 to 2038 (6.133%)1 | 38 |
| — |
| | | 38 |
| — |
| 0.889% notes due 2016 | — |
| — |
| | | 750 |
| — |
| Floating rate notes due 2016 | — |
| — |
| | | 700 |
| 1 |
| Total including debt due within one year | 32,490 |
| 44 |
| | | 27,071 |
| 43 |
| Debt due within one year | (6,256 | ) | (3 | ) | | | (1,487 | ) | (1 | ) | Reclassified from short-term debt | 9,000 |
| | | | 8,000 |
| | Total long-term debt | $ | 35,234 |
| $ | 41 |
| | | $ | 33,584 |
| $ | 42 |
|
| | 1 | Weighted-average interest rate at December 31, 2016. |
| | 2 | Interest rate at December 31, 2016. |
|