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v3.20.1

Post-Employment and Other Non-current Employee Benefits - Balances of Liabilities for Post-Employment and Other Non-Current Employee Benefits (Detail) $ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 MXN ($) | Dec. 31, 2018 MXN ($) | Dec. 31, 2019 USD ($) | [1] | Dec. 31, 2019 MXN ($)
Disclosure of net defined benefit liability (asset) [line items] |  |  |  |  |
Total post-employment and other non-current employee benefits |  | $ 2,652 | $ 175 | $ 3,293 | [2]
Pension and retirement plans [member] |  |  |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |  |  |
Vested benefit obligation | $ 627 | 480 |  |  |
Non-vested benefit obligation | 1,421 | 1,210 |  |  |
Accumulated benefit obligation | 2,048 | 1,690 |  |  |
Excess of projected defined benefit obligation over accumulated benefit obligation | 1,864 | 1,695 |  |  |
Defined benefit obligation |  | 3,385 |  | 3,912 |
Pension plan funds at fair value |  | (1,031) |  | (1,122) |
Net defined benefit liability |  | 2,354 |  | 2,790 |
Seniority premiums [member] |  |  |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |  |  |
Vested benefit obligation | 214 | 40 |  |  |
Non-vested benefit obligation | 133 | 204 |  |  |
Accumulated benefit obligation | 347 | 244 |  |  |
Excess of projected defined benefit obligation over accumulated benefit obligation | $ 283 | 165 |  |  |
Defined benefit obligation |  | 409 |  | 630 |
Pension plan funds at fair value |  | (111) |  | (127) |
Net defined benefit liability |  | $ 298 |  | $ 503 |
[1] | Convenience translation to U.S. dollars ($) – See Note 2.2.3
[2] | The Company initially adopted IFRS 16 on January 1, 2019 using the modified retrospective approach under which the comparative information is not restated. – See Note 2.4.1

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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_140_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of non-current provisions for employee benefits. [Refer: Provisions for employee benefits] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_d&doctype=Standard -URIDate 2019-03-27 + Details
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