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Leases -Summary of Future lease payments (Detail) - Dec. 31, 2019 ¥ in Millions, $ in Millions | CNY (¥) | USD ($)
--- | --- | ---
Leases [Abstract] |  |
2020 | ¥ 2,350 | $ 337
2021 | 1,705 | 245
2022 | 1,307 | 188
2023 | 1,080 | 155
2024 | 628 | 90
Thereafter | 395 | 57
Total future lease payments | 7,465 | 1,072
Less: Imputed interest | 696 | 100
Total lease liability balance | ¥ 6,769 | $ 972

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