Summary of Redeemable Noncontrolling Interest (Detail) ¥ in Millions, $ in Millions	12 Months Ended
Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)
Temporary Equity Disclosure [Abstract]
Balance as of January 1	¥ 7,148	$ 1,036	¥ 3,102	¥ 1,109
Issuance of subsidiary shares	1,208	175	4,722	1,866
Accretion of redeemable noncontrolling interests	593	86	391	127
Disposal of subsidiaries' shares	(556)	(80)
Reclassification of ordinary shares from mezzanine equity to ordinary shares			(153)
Repurchase of redeemable noncontrolling interests			(914)
Balance as of December 31	¥ 8,393	$ 1,217	¥ 7,148	¥ 3,102

Accretion of redeemable noncontrolling interests.

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- Definition

Reclassifications Of redeemable noncontrolling interests to Noncontrolling interests accounting.

+ References

No definition available.

+ Details

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- Definition

Equity impact of the value of redeemable preferred stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

No definition available.

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- Definition

Adjustments to temporary equity resulting from disposal of subsidiary shares.

+ References

No definition available.

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (16)(c)
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 15
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (12)(c)
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 14
-URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764

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- References

No definition available.

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- Definition

Value of new stock classified as temporary equity issued during the period.

+ References

No definition available.

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