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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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Amount of lessee's undiscounted obligation for lease payments for operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
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