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Other comprehensive income (Tables) | 12 Months Ended
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Dec. 31, 2021
Other comprehensive income/(loss) |
Schedule of changes in the composition of accumulated other comprehensive income/(loss) attributable to ordinary shareholders | Changes in the composition of accumulated other comprehensive income attributable to ordinary s h areholders for the years ended December 31, 2019, 2020 and 2021 are as follows:
|  | Foreign currency translation adjustments |  |  | Net unrealized gains/(losses) on available-for-sale securities |  |  | Total |
|  | (RMB in millions) |
Balances as of December 31, 2018 |  |  | 3,358 |  |  |  | 1 |  |  |  | 3,359 |
Other comprehensive income |  |  | 750 |  |  |  | 54 |  |  |  | 804 |
Balances as of December 31, 2019 |  |  | 4,108 |  |  |  | 55 |  |  |  | 4,163 |
Other comprehensive loss |  |  | (7,656 | ) |  |  | (55 | ) |  |  | (7,711 | )
Balances as of December 31, 2020 |  |  | (3,548 | ) |  |  | — |  |  |  | (3,548 | )
Other comprehensive loss |  |  | (2,542 | ) |  |  | — |  |  |  | (2,542 | )
Balances as of December 31, 2021 |  |  | (6,090 | ) |  |  | — |  |  |  | (6,090 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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