Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of new stock issued during the period.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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Ordinary Shares - Additional Information (Detail) - shares		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2024	Dec. 31, 2025	Aug. 13, 2024	Dec. 31, 2023
Treasury Stock, Common [Member]
Stockholders Equity Note [Line Items]
Treasury shares outstanding	(4,919,170)	(2,304,862)	(2,953,102)		(2,811,614)
Common Class A [Member]
Stockholders Equity Note [Line Items]
Common stock shares issued		1,551,709,362	1,562,944,610		1,538,109,009
Common stock shares outstanding		1,549,404,500	1,559,991,508		1,535,297,395
Stock issued during period shares new issues	8,963,906
Common Class A [Member] \| Share Issue Period One [Member]
Stockholders Equity Note [Line Items]
Common stock shares outstanding			1,010,502
Common Class A [Member] \| Treasury Stock, Common [Member]
Stockholders Equity Note [Line Items]
Treasury shares outstanding			7,953,404
Common Class A [Member] \| XPeng Fortune Holding Limited [Member]
Stockholders Equity Note [Line Items]
Issuance of ordinary shares for the vested Restricted Share Units ("RSUs")		8,460,156
Common Class A [Member] \| Didi [Member]
Stockholders Equity Note [Line Items]
Common stock shares issued				4,636,447
Common Class B [Member]
Stockholders Equity Note [Line Items]
Common stock shares issued		348,708,257	348,708,257
Common stock shares outstanding		348,708,257	348,708,257		348,708,257