GOODWILL - Changes in carrying amount (Details) ¥ in Millions, $ in Millions	12 Months Ended
Dec. 31, 2024 CNY (¥)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2024 USD ($)	Dec. 31, 2022 CNY (¥)
GOODWILL
Gross carrying values	¥ 5,642	¥ 5,757		¥ 5,606
Accumulated impairment loss	(421)	(439)		(411)
Goodwill	5,221	5,318	$ 715	5,195
Impairment loss recognized during the year		(4)
Net foreign exchange-goodwill	(115)	151
Net foreign exchange-impairment loss	¥ 18	¥ (24)
Hypothetical decline in projected cash flow or increase in the discount rate (as a percent)	5.00%	5.00%	5.00%
Legacy Huazhu
GOODWILL
Gross carrying values	¥ 3,036	¥ 3,036		3,036
Accumulated impairment loss	(4)	(4)		(4)
Goodwill	¥ 3,032	¥ 3,032		3,032
Percentage of fair value exceeded the carrying value	100.00%	100.00%	100.00%
Legacy DH
GOODWILL
Gross carrying values	¥ 2,606	¥ 2,721		2,570
Accumulated impairment loss	(417)	(435)		(407)
Goodwill	2,189	2,286		¥ 2,163
Impairment loss recognized during the year		(4)
Net foreign exchange-goodwill	(115)	151
Net foreign exchange-impairment loss	¥ 18	¥ (24)
Percentage of fair value exceeded the carrying value	36.00%	17.00%	36.00%
Fair value exceeded carrying value	¥ 794	¥ 490

The percentage of fair value exceeded the carrying value.

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Amount of fair value exceeded carrying value.

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Amount of foreign currency translation gain (loss) which increases (decreases) the goodwill impairment loss.

+ References

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The hypothetical decrease in projected cash flow or increase in the discount rate on the impairment test of goodwill as of the balance reporting date.

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount, before accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount, after tax, of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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