Convertible Senior Notes - Schedule of Carrying Amount of Notes (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥)
Liability component:
Principal	¥ 13,402,897	$ 2,103,207	¥ 17,953,650
Less: unamortized debt discount	750,725	117,805	1,274,874
Net carrying amount	12,652,172	1,985,402	16,678,776
Equity component:
Carrying amount	¥ 1,793,011	$ 281,363	¥ 1,744,219

Debt Instrument Convertible Carrying Amount Of Equity Component.

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- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Amount, after accumulated amortization, of debt discount.

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