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Earnings/(Loss) per share (Details) - shares		3 Months Ended		6 Months Ended
	Apr. 09, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings per share [abstract]
Number of shares distributed in spin-off (in shares)	488,200,000
Adjusted weighted average number of ordinary shares outstanding (in shares)		488,200,000	488,200,000	488,200,000	488,200,000
Antidilutive securities excluded from computation (in shares)		1,800,000		900,000

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- Definition

Antidilutive Securities Excluded From Computation Of Earnings Per Share, Amount

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No definition available.

+ Details

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- Definition

Number Of Shares Distributed In Spin-off

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No definition available.

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- Definition

The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2018-01-01
-Paragraph 70
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2018-03-01&anchor=para_70_b&doctype=Standard
-URIDate 2018-03-16

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- References

No definition available.

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