EQUITY - Schedule Of Options to Purchase Class A Shares (Details) - Equity-Settled Share-Based Payment Arrangement shares in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021 shares yr	Jun. 30, 2020 shares
Equity Settled Escrowed Stock Plan [Member]
Disclosure of classes of share capital [line items]
Option life, share options granted	7.5
Expected volatility, share options granted	24.40%
Liquidity Discount	25.00%
Expected dividend as percentage, share options granted	1.70%
Risk free interest rate, share options granted	1.00%
Management Share Option Plan
Disclosure of classes of share capital [line items]
Option life, share options granted	7.5
Expected volatility, share options granted	24.40%
Liquidity Discount	25.00%
Expected dividend as percentage, share options granted	1.70%
Risk free interest rate, share options granted	1.00%
Number of share options granted in share-based payment arrangement \| shares	4.2	5.2

Liquidity Discount

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- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2020-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2020-01-01

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- Definition

The option life of share options granted.

+ References

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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

+ References

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- Definition

The number of share options granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2020-01-01
-Paragraph 45
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45_b_ii&doctype=Standard
-URIDate 2020-01-01

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