| Consolidated Debt |
Long-term debt at December 31, 2018 and June 30, 2019 was as follows (in thousands): | | | | | | | | | | | | December 31,
2018 | | June 30,
2019 | Commercial paper | | $ | — |
| | $ | 197,000 |
| 6.55% Notes due 2019 | | 550,000 |
| | — |
| 4.25% Notes due 2021 | | 550,000 |
| | 550,000 |
| 3.20% Notes due 2025 | | 250,000 |
| | 250,000 |
| 5.00% Notes due 2026 | | 650,000 |
| | 650,000 |
| 6.40% Notes due 2037 | | 250,000 |
| | 250,000 |
| 4.20% Notes due 2042 | | 250,000 |
| | 250,000 |
| 5.15% Notes due 2043 | | 550,000 |
| | 550,000 |
| 4.20% Notes due 2045 | | 250,000 |
| | 250,000 |
| 4.25% Notes due 2046 | | 500,000 |
| | 500,000 |
| 4.20% Notes due 2047 | | 500,000 |
| | 500,000 |
| 4.85% Notes due 2049 | | — |
| | 500,000 |
| Face value of long-term debt | | 4,300,000 |
| | 4,447,000 |
| Unamortized debt issuance costs(1) | | (27,070 | ) | | (31,195 | ) | Net unamortized debt discount(1) | | (2,927 | ) | | (8,012 | ) | Net unamortized amount of gains from historical fair value hedges(1) | | 866 |
| | — |
| Long-term debt, net, including current portion | | 4,270,869 |
| | 4,407,793 |
| Less: Current portion of long-term debt, net | | 59,489 |
| | — |
| Long-term debt, net | | $ | 4,211,380 |
| | $ | 4,407,793 |
| | | | | |
(1) Debt issuance costs, note discounts and premiums and realized gains and losses of historical fair value hedges are being amortized or accreted to the applicable notes over the respective lives of those notes.
|