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Contingencies (Narrative) (Details) - Republic of the Philippines, Department of Labor and Employment and the National Labor Relations Commission [Member]					12 Months Ended
	Dec. 21, 2016 PHP (₱) Plantiffs	Dec. 21, 2016 USD ($) Plantiffs	Nov. 29, 2016 PHP (₱) Plantiffs	Nov. 29, 2016 USD ($) Plantiffs	Dec. 31, 2004 PHP (₱)	Dec. 31, 2004 USD ($)	Jun. 23, 2014 PHP (₱)	Jun. 23, 2014 USD ($)
Loss Contingencies [Line Items]
Loss contingency, damages awarded			₱ 14,858,495,937	$ 306,000,000	₱ 3,453,664,710	$ 71,000,000
Loss Contingency, Number of Plaintiffs, Award Increase			4,922	4,922
Estimated Percentage of Settling Complainants	18.00%	18.00%
Loss Contingency, Number of Plaintiffs	5,984	5,984	5,984	5,984
Loss Contingency, Estimate of Possible Loss Per Complainant	₱ 68,000	$ 1,400
Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss							₱ 342,287,800	$ 7,000,000

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- Definition

Estimated Percentage of Settling Complainants

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Loss Contingency, Estimate of Possible Loss Per Complainant

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Loss Contingency, Number of Plaintiffs, Award Increase

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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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-Publisher FASB
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-Publisher FASB
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Number of plaintiffs that have filed claims pertaining to a loss contingency.

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