The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

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Investments in Associates and Joint Ventures - Carrying Value of Investments in Associates (Detail) - PHP (₱) ₱ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 03, 2018	Nov. 08, 2018
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	₱ 17,206	₱ 16,992
Carrying value of investments in joint ventures	36,158	35,131
Total carrying value of investments in associates and joint ventures	53,364	52,123	₱ 53,863
VTI, Bow Arken and Brightshare [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	33,596	32,625
Multisys [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	2,521	2,466		₱ 550	₱ 2,150
Telecommunications Connectivity, Inc., or TCI [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	39	40
Paymaya Finserve Corporation, or PFC [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	1
Voyager Finserve Corporation, or VFC [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	1
Beacon [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in joint ventures	40,966
MediaQuest PDRs [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	9,984	9,914
Total carrying value of investments in associates and joint ventures	10,508	9,955
VIH [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	7,080	6,702
Total carrying value of investments in associates and joint ventures	6,398	3,224
Appcard, Inc [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	110	102
Asia Outsourcing Beta Limited [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates	₱ 32	33
Digitel Crossing, Inc. [Member]
Disclosure of Investments in Associates and Joint Ventures [Line Items]
Carrying value of investments in associates		₱ 241