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Profit Before Income Tax - Summary of Capitalized Borrowing Costs (Detail)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Inventories related to real estate business [member] | Bottom of range [member]      
Disclosure of detailed information about borrowings [line items]      
Annual interest capitalization rates 4.20% 4.20% 4.35%
Inventories related to real estate business [member] | Top of range [member]      
Disclosure of detailed information about borrowings [line items]      
Annual interest capitalization rates 4.35% 4.75% 4.85%
Property, plant and equipment [member] | Bottom of range [member]      
Disclosure of detailed information about borrowings [line items]      
Annual interest capitalization rates 0.48% 0.49% 0.96%
Property, plant and equipment [member] | Top of range [member]      
Disclosure of detailed information about borrowings [line items]      
Annual interest capitalization rates 1.08% 3.47% 4.03%