Earnings Per Share - Additional Information (Detail)	Dec. 31, 2022	Dec. 31, 2021
Earnings per share [abstract]
Anti-dilutive share-based compensation awards outstanding	0	0

The number of antidilutive share options that were excluded from the diluted earnings per share computation.

No definition available.

Name:	tri_NumberOfAntidilutiveShareOptionsOutstanding
Namespace Prefix:	tri_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant