v3.22.1
Principal Amount and Unamortized Discount and Debt Issuance Costs (Detail)
¥ in Millions, $ in Millions
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Debt Disclosure [Abstract]      
Principal amount ¥ 53,848 $ 8,450 ¥ 48,638
Unamortized discount and debt issuance costs (223) (36) (230)
Long-term Debt, Total ¥ 53,625 $ 8,414 ¥ 48,408