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Components of Income Tax (Detail) ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CNY (¥)	Dec. 31, 2021 CNY (¥)
Income Tax Disclosure [Abstract]
Current income tax	¥ 3,812	$ 537	¥ 3,163	¥ 3,636
Income tax refund due to reduced tax rate			(468)	0
Adjustments of deferred tax assets due to change in tax rates	111	16	119	109
Deferred income tax benefit	(274)	(39)	(236)	(558)
Taxation for the year	¥ 3,649	$ 514	¥ 2,578	¥ 3,187

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations exclude adjustments of deferred tax assets due to reduced tax rates.

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Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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