Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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SHARE-BASED COMPENSATION - Nonvested restricted stocks (Details) ¥ in Millions	6 Months Ended			12 Months Ended
	Jun. 30, 2025 CNY (¥) shares	Jun. 30, 2025 CNY (¥) $ / shares	Jun. 30, 2024 CNY (¥)	Dec. 31, 2023 shares
Weighted Average Grant Date Fair Value
Recognized share-based compensation expenses \| ¥	¥ 247		¥ 170
Restricted stocks
Number of Restricted Stocks
Nonvested restricted stocks outstanding at the beginning of the period (in shares)	127,537,010
Granted (in shares)	4,479,560
Forfeited (in shares)	(510,300)
Vested (in shares)	(11,110,110)
Nonvested restricted stocks outstanding at the end of the period (in shares)	120,396,160
Weighted Average Grant Date Fair Value
Nonvested restricted stocks outstanding at the beginning of the period (in dollars per shares) \| $ / shares		$ 2.78
Granted (in dollars per shares) \| $ / shares		3.05
Forfeited (in dollars per shares) \| $ / shares		2.61
Vested (in dollars per shares) \| $ / shares		2.13
Nonvested restricted stocks outstanding at the end of the period (in dollars per shares) \| $ / shares		$ 2.85
Recognized share-based compensation expenses \| ¥	¥ 287
Total unrecognized compensation expense \| ¥	¥ 1,653	$ 1,653
Weighted-average period for recognition of unrecognized compensation costs	5 years 9 months 29 days
Total fair value of nonvested restricted stocks, vested \| ¥	¥ 283		¥ 101
Restricted stocks \| Performance Condition \| Senior officers
Number of Restricted Stocks
Granted (in shares)	888,210			28,625,350