The fair value for the financial assets (excluding cash and cash equivalents) and financial liabilities shown in the consolidated statements of financial position at December 31, 2016 and 2017 is as follows:
| Measurement of fair value at December 31, 2016 | ||||||||||||||||
| Level 1 | Level 2 | Level 3 | Total | |||||||||||||
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Assets: |
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Available for sale marketable securities and other short term investments |
Ps. | 41,463,511 | Ps. | 13,393,646 | Ps. | — | Ps. | 54,857,157 | ||||||||
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Derivative financial instruments |
— | 909,051 | — | 909,051 | ||||||||||||
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Pension plan assets |
214,051,693 | 8,175,469 | 118,459 | 222,345,621 | ||||||||||||
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Total |
Ps. | 255,515,204 | Ps. | 22,478,166 | Ps. | 118,459 | Ps. | 278,111,829 | ||||||||
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Liabilities: |
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Debt |
Ps. | 666,457,233 | Ps. | 80,214,836 | Ps. | — | Ps. | 746,672,069 | ||||||||
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Derivative financial instruments |
— | 17,584,747 | — | 17,584,747 | ||||||||||||
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Total |
Ps. | 666,457,233 | Ps. | 97,799,583 | Ps. | — | Ps. | 764,256,816 | ||||||||
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| Measurement of fair value at December 31, 2017 | ||||||||||||||||
| Level 1 | Level 2 | Level 3 | Total | |||||||||||||
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Assets: |
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Available for sale marketable securities and other short term investments |
Ps. | 46,682,657 | Ps. | 12,438,019 | Ps. | — | Ps. | 59,120,676 | ||||||||
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Derivative financial instruments |
— | 8,037,384 | — | 8,037,384 | ||||||||||||
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Pension plan assets |
218,518,358 | 9,039,270 | 130,976 | 227,688,604 | ||||||||||||
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Total |
Ps. | 265,201,015 | Ps. | 29,514,673 | Ps. | 130,976 | Ps. | 294,846,664 | ||||||||
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Liabilities: |
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Debt |
Ps. | 691,769,785 | Ps. | 63,147,153 | Ps. | — | Ps. | 754,916,938 | ||||||||
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Derivative financial instruments |
— | 14,359,460 | — | 14,359,460 | ||||||||||||
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Total |
Ps. | 691,769,785 | Ps. | 77,506,613 | Ps. | — | Ps. | 769,276,398 | ||||||||
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