Other Assets (Parenthetical) (Detail) ¥ in Millions, $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2021
CNY (¥)
|
Dec. 31, 2021
USD ($)
|
Dec. 31, 2020
CNY (¥)
|
Dec. 31, 2021
USD ($)
|
|
| Prepaid Expense And Other Assets [Line Items] | ||||
| Contract with customer, asset, allowance for credit loss | ¥ 85 | ¥ 27 | $ 13 | |
| Contract with customer, asset, credit loss expense (reversal) | 58 | $ 9 | 9 | |
| Contract with customer, asset, allowance for credit loss, writeoff | ¥ 0 | ¥ 0 | ||
| X | ||||||||||
- Definition Prepaid expense and other assets [Line Item]. No definition available.
|
| X | ||||||||||
- Definition Amount of allowance for credit loss for right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of writeoff of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, charged against allowance for credit loss. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|