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Net interest income (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Net interest income from financial instruments measured at amortized cost and fair value through other comprehensive income |  |  |  |  |  |
Interest income from loans and deposits | [1] | $ 1,612 | $ 1,584 | $ 1,632 | $ 3,197 | $ 3,500
Interest income from securities financing transactions | [2] | 126 | 135 | 202 | 261 | 569
Interest income from other financial instruments measured at amortized cost |  | 68 | 73 | 87 | 141 | 176
Interest income from debt instruments measured at fair value through other comprehensive income |  | 16 | 35 | 35 | 51 | 52
Interest income from derivative instruments designated as cash flow hedges |  | 284 | 268 | 178 | 553 | 290
Total interest income from financial instruments measured at amortized cost and fair value through other comprehensive income |  | 2,106 | 2,097 | 2,133 | 4,203 | 4,588
Interest expense on loans and deposits | [3] | 136 | 137 | 244 | 273 | 707
Interest expense on securities financing transactions | [4] | 293 | 258 | 224 | 551 | 443
Interest expense on debt issued |  | 381 | 411 | 596 | 792 | 1,272
Interest expense on lease liabilities |  | 26 | 27 | 27 | 53 | 56
Total interest expense from financial instruments measured at amortized cost |  | 836 | 833 | 1,092 | 1,669 | 2,478
Total net interest income from financial instruments measured at amortized cost and fair value through other comprehensive income |  | 1,270 | 1,264 | 1,041 | 2,535 | 2,110
Net Interest income from financial instruments measured at fair value through profit or loss |  |  |  |  |  |
Net interest income from financial instruments at fair value held for trading |  | 193 | 200 | 242 | 393 | 442
Net interest income from brokerage balances |  | 216 | 197 | 182 | 412 | 318
Net interest income from securities financing transactions at fair value not held for trading | [5] | 12 | 12 | 18 | 24 | 51
Interest income from other financial instruments at fair value not held for trading |  | 75 | 96 | 153 | 170 | 355
Interest expense on other financial instruments designated at fair value |  | (138) | (155) | (244) | (294) | (555)
Total net interest income from financial instruments measured at fair value through profit or loss |  | 357 | 349 | 351 | 706 | 612
Total net interest income |  | $ 1,628 | $ 1,613 | $ 1,392 | $ 3,241 | $ 2,722
[1] | <div>Consists of interest income from cash and balances at central banks, loans and advances to banks and customers, and cash collateral receivables on derivative instruments, as well as negative interest on amounts due to banks, customer deposits, and cash collateral payables on derivative instruments</div>
[2] | <div>Includes interest income on receivables from securities financing transactions and negative interest, including fees, on payables from securities financing transactions.</div>
[3] | <div>Consists of interest expense on amounts due to banks, cash collateral payables on derivative instruments, and customer deposits, as well as negative interest on cash and balances at central banks, loans and advances to banks, and cash collateral receivables on derivative instruments.</div>
[4] | <div>Includes interest expense on payables from securities financing transactions and negative interest, including fees, on receivables from securities financing transactions.</div>
[5] | <div>Includes interest expense on securities financing transactions designated at fair value.</div>

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- Definition The amount of interest expense for financial liabilities that are not at fair value through profit or loss. [Refer: At fair value [member]; Interest expense; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 20 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_20_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of interest expense on debt instruments issued. [Refer: Interest expense; Debt instruments issued] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of interest expense on lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2020-01-01 -Paragraph 53 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of income arising from interest for financial assets that are not at fair value through profit or loss. [Refer: Interest income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 20 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_20_b&doctype=Standard&book=b -URIDate 2020-01-01 + Details
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- Definition The amount of income or expense arising from interest. [Refer: Interest expense; Interest income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 28 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_28_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 23 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_23&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_85&doctype=Standard -URIDate 2020-01-01 + Details
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