Income and Expenses - Summary of Cost of Sales and Services (Detail) - PHP (₱) ₱ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Analysis Of Income And Expense [Abstract]
Cost of computers, mobile handsets and broadband data modems (Note 18)	₱ 8,286	₱ 8,275	₱ 9,402
Cost of services (Note 18)	3,492	2,991	3,680
Cost of point-product-sales (Note 18)	1,563	1,029	347
Total cost of sales and services	₱ 13,341	₱ 12,295	₱ 13,429

The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories.

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