v3.22.1
Summary of Redeemable Noncontrolling Interest (Detail)
¥ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2021
USD ($)
Temporary Equity Disclosure [Abstract]          
Balance as of January 1 ¥ 3,102 $ 487 ¥ 1,109 ¥ 716  
Business combinations (Note 3) 0     182 $ 0
Issuance of subsidiary shares 4,722 741 1,866 100  
Accretion of redeemable noncontrolling interests 391 61 127 111  
Reclassification of ordinary shares from mezzanine equity to ordinary shares (153) (24)      
Repurchase of redeemable noncontrolling interests (914) (143)      
Balance as of December 31 ¥ 7,148 $ 1,122 ¥ 3,102 ¥ 1,109