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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2019
Equity Abstract |
Retained Earnings | The reserves are not allowed to be transferred to the Company in terms of cash dividends, loans or advances, nor are they allowed for distribution except under liquidation.
|  | As of December 31, |
|  | 2018 |  |  | 2019 |  |  | 2019 |
|  | RMB |  |  | RMB |  |  | US$ |
|  | (In millions) |
PRC statutory reserve funds |  |  | 515 |  |  |  | 626 |  |  |  | 90 |
Unreserved retained earnings |  |  | 128,731 |  |  |  | 125,642 |  |  |  | 18,047 |
Total retained earnings |  |  | 129,246 |  |  |  | 126,268 |  |  |  | 18,137 |
Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax | The changes in accumulated other comprehensive income (loss) by component, net of tax, were as follows:
|  | Foreign currency translation adjustment |  |  | Unrealized gains on available-for- sale investments |  |  | Total |
|  | RMB |  |  | RMB |  |  | RMB |
|  | (In millions) |
Balance at December 31, 2016 |  |  | (2,026 | ) |  |  | 243 |  |  |  | (1,783 | )
Other comprehensive income before reclassification |  |  | 732 |  |  |  | 2,574 |  |  |  | 3,306 |
Amounts reclassified from accumulated other comprehensive income |  |  | 71 |  |  |  | (999 | ) |  |  | (928 | )
Net current-period other comprehensive income |  |  | 803 |  |  |  | 1,575 |  |  |  | 2,378 |
Other comprehensive loss attribute to noncontrolling interests and redeemable noncontrolling interests |  |  | 335 |  |  |  | — |  |  |  | 335 |
Balance at December 31, 2017 |  |  | (888 | ) |  |  | 1,818 |  |  |  | 930 |
Cumulative effect of accounting change * |  |  | — |  |  |  | (1,854 | ) |  |  | (1,854 | )
Other comprehensive income before reclassification |  |  | 114 |  |  |  | 4,117 |  |  |  | 4,231 |
Amounts reclassified from accumulated other comprehensive income |  |  | 80 |  |  |  | (2,171 | ) |  |  | (2,091 | )
Net current-period other comprehensive income |  |  | 194 |  |  |  | 92 |  |  |  | 286 |
Other comprehensive income attribute to noncontrolling interests and redeemable noncontrolling interests |  |  | (1,006 | ) |  |  | — |  |  |  | (1,006 | )
Balance at December 31, 2018 |  |  | (1,700 | ) |  |  | 1,910 |  |  |  | 210 |
Other comprehensive income (loss) before reclassification |  |  | 207 |  |  |  | 1,981 |  |  |  | 2,188 |
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | (989 | ) |  |  | (2,689 | ) |  |  | (3,678 | )
Net current-period other comprehensive income (loss) |  |  | (782 | ) |  |  | (708 | ) |  |  | (1,490 | )
Other comprehensive loss (income) attribute to noncontrolling interests and redeemable noncontrolling interests |  |  | (102 | ) |  |  | (1 | ) |  |  | (103 | )
Balance at December 31, 2019 |  |  | (2,584 | ) |  |  | 1,201 |  |  |  | (1,383 | )
Balance at December 31, 2019, in US$ |  |  | (372 | ) |  |  | 173 |  |  |  | (199 | )
* | Adjustment of net unrealized gains related to available-for-sale equity investments from accumulated other comprehensive income to opening retained earnings as a result of the adoption of ASC 321 on January 1, 2018.
Tax Effect Allocated to Each Component of Other Comprehensive Income (loss) | The following table sets forth the tax benefit (expense ) allocated to each component of other comprehensive income (loss) for the years ended December 31, 2017, 2018 and 2019:
|  | For the years ended December 31, |
|  | 2017 |  |  | 2018 |  |  | 2019 |  |  | 2019 |
|  | RMB |  |  | RMB |  |  | RMB |  |  | US$ |
|  | (In millions) |
Unrealized gains on available-for-sale investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) before reclassification |  |  | (215 | ) |  |  | (409 | ) |  |  | (280 | ) |  |  | (40 | )
Amounts reclassified from accumulated other comprehensive income (loss) |  |  | 163 |  |  |  | 328 |  |  |  | 402 |  |  |  | 58 |
Net current-period other comprehensive income (loss) |  |  | (52 | ) |  |  | (81 | ) |  |  | 122 |  |  |  | 18 |

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- Definition Tabular disclosure of the cumulative amount of the reporting entity's undistributed earnings or deficit which is classified into two parts: PRC statutory reserve funds and Unreserved retained earnings, the former of which are not allowed to be transferred to the Entity in terms of cash dividends, loans or advances, nor are they allowed for distribution except under liquidation. + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: 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=118930883&loc=SL7669686-108580 + Details
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