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Bank overdrafts and short-term borrowings - Summary of Weighted Average Interest Rates on Bank Overdrafts and Short-Term Borrowings (Detail) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Disclosure of detailed information about borrowings [abstract] |  |
Bank overdrafts | 4.13% | 4.35%
Borrowings | 2.55% | 2.69%

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- Definition Weighted average interest rates on bank overdraft. + References No definition available. + Details
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- Definition Weighted average interest rates on short-term borrowings. + References No definition available. + Details
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