| | | | | | | | | | | | The following table provides the components of our senior unsecured long-term debt: | | | | | As of December 31, | (MILLIONS OF DOLLARS) | | Maturity Date | | 2013 |
| | 2012 |
| 6.20%(a) | | March 2019 | | $ | 3,234 |
| | $ | 3,327 |
| 5.35%(a) | | March 2015 | | 3,037 |
| | 3,065 |
| 4.75% euro(b) | | June 2016 | | 2,752 |
| | 2,638 |
| 5.75% euro(b) | | June 2021 | | 2,748 |
| | 2,634 |
| 7.20%(a) | | March 2039 | | 2,603 |
| | 2,903 |
| 6.50% U.K. pound(b) | | June 2038 | | 2,459 |
| | 2,407 |
| 5.95% | | April 2037 | | 2,085 |
| | 2,086 |
| 4.55% euro | | May 2017 | | 1,390 |
| | 1,384 |
| 5.50% | | February 2016 | | 1,033 |
| | 1,048 |
| 5.50%(c) | | February 2014 | | — |
| | 1,832 |
| 4.75% euro(d) | | December 2014 | | — |
| | 1,284 |
| Notes and other debt with a weighted-average interest rate of 5.47%(e) | | 2021–2043 | | 4,810 |
| | 3,403 |
| Notes and other debt with a weighted-average interest rate of 4.70%(f) | | 2016–2018 | | 3,683 |
| | 2,254 |
| Foreign currency notes and other foreign currency debt with a weighted- average interest rate of 3.02%(g) | | 2015-2016 | | 628 |
| | 771 |
| Long-term debt | | | | $ | 30,462 |
| | $ | 31,036 |
| Current portion of long-term debt (not included above) | | | | $ | 2,060 |
| | $ | 2,449 |
|
| | (a) | Instrument is callable by us at any time at the greater of 100% of the principal amount or the sum of the present values of the remaining scheduled payments of principal and interest discounted at the U.S. Treasury rate plus 0.50% plus, in each case, accrued and unpaid interest. |
| | (b) | Instrument is callable by us at any time at the greater of 100% of the principal amount or the sum of the present values of the remaining scheduled payments of principal and interest discounted at a comparable government bond rate plus 0.20% plus, in each case, accrued and unpaid interest. |
| | (c) | At December 31, 2013, the note was called. |
| | (d) | At December 31, 2013, the note has been reclassified to Current portion of long-term debt. |
| | (e) | Contains debt issuances with a weighted-average maturity of approximately 24 years. |
| | (f) | Contains debt issuances with a weighted-average maturity of approximately 4 years. |
| | (g) | Contains debt issuances with a weighted-average maturity of approximately 2 years. |
|