XML 184 R177.htm IDEA: XBRL DOCUMENT v3.19.1

Post-Employment Obligation - Disclosure of Changes In Present Value of Defined Benefit Obligation (Detail) - BRL (R$) R$ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of net defined benefit liability (asset) [line items]
Cost of current service	R$ 15	R$ 19	R$ 17
Interest on the actuarial obligation	1,161	1,246	1,263
Actuarial losses (gains):
Due to changes in financial assumptions	705	390	781
Plan amendment - Past service		(619)
Pension plans and retirement supplement plans [member]
Disclosure of net defined benefit liability (asset) [line items]
Cost of current service	4	5	5
Interest on the actuarial obligation	959	980	1,014
Actuarial losses (gains):
Benefits paid	(881)	(841)	(807)
Health plan [member]
Disclosure of net defined benefit liability (asset) [line items]
Cost of current service	10	11	9
Interest on the actuarial obligation	172	178	173
Actuarial losses (gains):
Due to changes in financial assumptions	470	22	305
Dental plan [member]
Disclosure of net defined benefit liability (asset) [line items]
Cost of current service	0
Interest on the actuarial obligation	4	3	4
Actuarial losses (gains):
Due to changes in financial assumptions	8	(1)	6
Life insurance [member]
Disclosure of net defined benefit liability (asset) [line items]
Cost of current service	1	3	3
Interest on the actuarial obligation	26	85	72
Present value of defined benefit obligation [member]
Disclosure of net defined benefit liability (asset) [line items]
Beginning balance	12,663	12,306	9,956
Cost of current service	15	19	17
Interest on the actuarial obligation	1,161	1,246	1,263
Actuarial losses (gains):
Due to changes in demographic assumptions		191	(1)
Due to changes in financial assumptions	903	537	1,828
Due to adjustments based on experience	161	(53)	162
Due to changes and adjustments	1,064	675	1,989
Plan amendment - Past service		(619)
Benefits paid	(1,011)	(964)	(919)
Ending balance	13,892	12,663	12,306
Present value of defined benefit obligation [member] | Pension plans and retirement supplement plans [member]
Disclosure of net defined benefit liability (asset) [line items]
Beginning balance	10,545	9,743	8,049
Cost of current service	3	5	5
Interest on the actuarial obligation	959	980	1,013
Actuarial losses (gains):
Due to changes in demographic assumptions		191	(1)
Due to changes in financial assumptions	467	414	1,253
Due to adjustments based on experience	(20)	53	231
Due to changes and adjustments	447	658	1,483
Benefits paid	(881)	(841)	(807)
Ending balance	11,073	10,545	9,743
Present value of defined benefit obligation [member] | Health plan [member]
Disclosure of net defined benefit liability (asset) [line items]
Beginning balance	1,809	1,711	1,323
Cost of current service	10	11	9
Interest on the actuarial obligation	173	178	174
Actuarial losses (gains):
Due to changes in financial assumptions	402	66	391
Due to adjustments based on experience	68	(44)	(87)
Due to changes and adjustments	470	22	304
Benefits paid	(118)	(113)	(99)
Ending balance	2,344	1,809	1,711
Present value of defined benefit obligation [member] | Dental plan [member]
Disclosure of net defined benefit liability (asset) [line items]
Beginning balance	39	38	30
Interest on the actuarial obligation	4	3	4
Actuarial losses (gains):
Due to changes in financial assumptions	8	2	9
Due to adjustments based on experience		(2)	(3)
Due to changes and adjustments	8		6
Benefits paid	(3)	(2)	(2)
Ending balance	48	39	38
Present value of defined benefit obligation [member] | Life insurance [member]
Disclosure of net defined benefit liability (asset) [line items]
Beginning balance	270	814	554
Cost of current service	2	3	3
Interest on the actuarial obligation	25	85	72
Actuarial losses (gains):
Due to changes in financial assumptions	26	55	175
Due to adjustments based on experience	113	(60)	21
Due to changes and adjustments	139	(5)	196
Plan amendment - Past service		(619)
Benefits paid	(9)	(8)	(11)
Ending balance	R$ 427	R$ 270	R$ 814

X

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2018-01-01
-Paragraph 141
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_141_c_ii&doctype=Standard
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- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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No definition available.

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- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from settlements. Settlements are transactions that eliminate all further legal or constructive obligations for part or all of the benefits provided under a defined benefit plan, other than a payment of benefits to, or on behalf of, employees that is set out in the terms of the plan and included in the actuarial assumptions. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]; Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2018-01-01
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- Definition

The increase (decrease) in the net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2018-01-01
-Paragraph 141
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- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2018-01-01
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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 2018-01-01
-Paragraph 140
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The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)]

+ References

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-Name IAS
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Actuarial gains (losses) arising from adjustments based on experience net defined benefit liability (asset).

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