XML 216 R164.htm IDEA: XBRL DOCUMENT
v3.19.1

Taxes - Summary of Deferred Tax Asset Balance and Respective Changes (Detail) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Deferred Tax Assets [Line Items] |  |
Beginning balance | R$ 51,002 | R$ 52,964
Realization / reversal | (24,296) | (17,419)
Increase | 12,434 | 15,457
Ending balance | 39,140 | 51,002
Beginning balance | 15,524 | 14,475
Realization / reversal | (11,696) | (8,845)
Increase | 2,978 | 9,894
Ending balance | 6,806 | 15,524
Cash flow hedges [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 983 | 843
Increase | 166 | 140
Ending balance | 1,149 | 983
Beginning balance | 166 | 63
Increase | 2 | 103
Ending balance | 168 | 166
Reflected in income [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 48,810 | 49,841
Realization / reversal | (23,511) | (16,347)
Increase | 11,953 | 15,316
Ending balance | 37,252 | 48,810
Beginning balance | 14,569 | 13,507
Realization / reversal | (11,385) | (8,716)
Increase | 2,960 | 9,778
Ending balance | 6,144 | 14,569
Provision for expected loss [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 24,686 | 27,510
Realization / reversal | (9,746) | (9,453)
Increase | 3,623 | 6,629
Ending balance | 18,563 | 24,686
Related to income tax and social contribution tax carryforwards [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 7,595 | 6,981
Realization / reversal | (3,649) | (197)
Increase | 445 | 811
Ending balance | 4,391 | 7,595
Provision for profit sharing [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 1,829 | 1,541
Realization / reversal | (1,829) | (1,541)
Increase | 1,844 | 1,829
Ending balance | 1,844 | 1,829
Provision for devaluation of securities with permanent impairment [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 2,228 | 1,727
Realization / reversal | (1,843) |
Increase | 1,344 | 501
Ending balance | 1,729 | 2,228
Provision [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 5,194 | 5,704
Realization / reversal | (2,124) | (2,733)
Increase | 1,394 | 2,223
Ending balance | 4,464 | 5,194
Civil lawsuits [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 1,974 | 1,955
Realization / reversal | (610) | (576)
Increase | 222 | 595
Ending balance | 1,586 | 1,974
Labor claims [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 2,200 | 2,167
Realization / reversal | (1,280) | (1,233)
Increase | 1,117 | 1,266
Ending balance | 2,037 | 2,200
Tax and social security [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 1,020 | 1,582
Realization / reversal | (234) | (924)
Increase | 55 | 362
Ending balance | 841 | 1,020
Goodwill on purchase of investments [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 141 | 165
Realization / reversal | (163) | (758)
Increase | 82 | 734
Ending balance | 60 | 141
Legal liabilities [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 488 | 387
Realization / reversal | (61) | (557)
Increase | 249 | 658
Ending balance | 676 | 488
Adjustments of operations carried out on futures settlement market [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 277 | 485
Realization / reversal | (277) | (239)
Increase | 98 | 31
Ending balance | 98 | 277
Beginning balance | 1,421 | 1,095
Realization / reversal | (1,421) |
Increase | 923 | 326
Ending balance | 923 | 1,421
Adjustment to fair value of financial assets at fair value through profit or loss [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 429 | 243
Realization / reversal | (429) | (243)
Increase | 631 | 429
Ending balance | 631 | 429
Beginning balance | 7,592 | 7,293
Realization / reversal | (7,592) | (7,293)
Increase | 1,790 | 7,592
Ending balance | 1,790 | 7,592
Provision related to health insurance operations [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 341 | 300
Realization / reversal | (5) |
Increase | 7 | 41
Ending balance | 343 | 341
Other Items Reflected In Income [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 5,602 | 4,798
Realization / reversal | (3,385) | (626)
Increase | 2,236 | 1,430
Ending balance | 4,453 | 5,602
Beginning balance | 1,386 | 1,255
Realization / reversal | (637) | (921)
Increase | 42 | 1,052
Ending balance | 791 | 1,386
Reflected In Stockholder Equity [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 2,192 | 3,123
Realization / reversal | (785) | (1,072)
Increase | 481 | 141
Ending balance | 1,888 | 2,192
Beginning balance | 955 | 968
Realization / reversal | (311) | (129)
Increase | 18 | 116
Ending balance | 662 | 955
Corporate reorganizations [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 628 | 1,256
Realization / reversal | (628) | (628)
Ending balance |  | 628
Adjustment to fair value of financial assets at fair value through other comprehensive income [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 327 | 771
Realization / reversal | (157) | (444)
Increase | 213 |
Ending balance | 383 | 327
Beginning balance | 767 | 836
Realization / reversal | (302) | (82)
Increase | 9 | 13
Ending balance | 474 | 767
Other [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 254 | 253
Increase | 102 | 1
Ending balance | 356 | 254
Beginning balance | 13 | 34
Realization / reversal |  | (21)
Ending balance | 13 | 13
Depreciation in excess - finance lease[Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 613 | 936
Realization / reversal | (267) | (323)
Ending balance | 346 | 613
Adjustment of escrow deposits and provisions [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 1,280 | 1,193
Realization / reversal | (11) | (179)
Increase | 79 | 266
Ending balance | 1,348 | 1,280
Post employment benefits [member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 304 | 233
Realization / reversal | (143) |
Increase | 126 | 71
Ending balance | 287 | 304
Taxation of results abroad - capital gains [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 1,973 | 1,502
Realization / reversal | (1,314) |
Increase |  | 471
Ending balance | 659 | 1,973
Provision for pension plan benefits [Member] |  |
Deferred Tax Assets [Line Items] |  |
Beginning balance | 9 | 35
Realization / reversal | (9) | (26)
Increase | 7 |
Ending balance | R$ 7 | R$ 9

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