Thomson Reuters (TRI) 6-K 6 Aug 21 2021 Q2 Current report (foreign) Financial data

Cover Page

Cover Page	6 Months Ended
	Jun. 30, 2021
Cover [Abstract]
Document Type	6-K
Amendment Flag	false
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Registrant Name	THOMSON REUTERS CORPORATION
Entity Central Index Key	0001075124
Current Fiscal Year End Date	--12-31

Consolidated Income Statement

Consolidated Income Statement - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
CONTINUING OPERATIONS
Revenues	$ 1,532	$ 1,405	$ 3,112	$ 2,925
Operating expenses	(1,036)	(929)	(2,054)	(1,946)
Depreciation	(42)	(43)	(88)	(83)
Other operating gains, net	14	80	31	48
Operating profit	316	365	703	655
Finance costs, net:
Net interest expense	(49)	(52)	(100)	(97)
Other finance income (costs)	2	(13)	(4)	34
Income before tax and equity method investments	269	300	599	592
Share of post-tax earnings (losses) in equity method investments	1,092	(153)	7,389	(207)
Tax expense	(289)	(16)	(1,883)	(63)
Earnings from continuing operations	1,072	131	6,105	322
Loss from discontinued operations, net of tax	(4)	(5)	(1)	(3)
Net earnings	1,068	126	6,104	319
Earnings attributable to common shareholders	$ 1,068	$ 126	$ 6,104	$ 319
Basic earnings per share
From continuing operations	$ 2.16	$ 0.26	$ 12.31	$ 0.65
From discontinued operations	(0.01)	(0.01)	(0.01)	(0.01)
Basic earnings per share	2.15	0.25	12.30	0.64
Diluted earnings per share
From continuing operations	2.16	0.26	12.28	0.65
From discontinued operations	(0.01)	(0.01)	0	(0.01)
Diluted earnings per share	$ 2.15	$ 0.25	$ 12.28	$ 0.64
Computer software [member]
CONTINUING OPERATIONS
Amortization	$ (122)	$ (118)	$ (237)	$ (229)
Other identifiable intangible assets [member]
CONTINUING OPERATIONS
Amortization	$ (30)	$ (30)	$ (61)	$ (60)

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement [LineItems]
Net earnings	$ 1,068	$ 126	$ 6,104	$ 319
Items that have been or may be subsequently reclassified to net earnings:
Cash flow hedges adjustments to net earnings	(17)	(37)	(32)	(34)
Cash flow hedges adjustments to equity	15	17	24	14
Foreign currency translation adjustments to equity	27	22	32	(195)
Share of other comprehensive income (loss) in equity method investments	0	54	(98)	(47)
Related tax (expense) benefit on share of other comprehensive income (loss) in equity method investments	0	(14)	23	11
Other comprehensive income that will be reclassified to profit or loss, net of tax	25	42	(51)	(251)
Items that will not be reclassified to net earnings:
Fair value adjustments on financial assets	7	13	5	5
Remeasurement on defined benefit pension plans	37	65	133	23
Related tax expense on remeasurement on defined benefit pension plans	(14)	(15)	(37)	(2)
Share of other comprehensive income (loss) in equity method investments	0	3	0	(3)
Related tax (expense) benefit on share of other comprehensive income (loss) in equity method investments	0	(1)	0	1
Other comprehensive income that will not be reclassified to profit or loss, net of tax	30	65	101	24
Other comprehensive income (loss)	55	107	50	(227)
Total comprehensive income	1,123	233	6,154	92
Comprehensive income (loss) for the period attributable to:
Total comprehensive income	1,123	233	6,154	92
Continuing Operations [member]
Comprehensive income (loss) for the period attributable to:
Common shareholders	1,127	238	6,155	95
Discontinued Operations [member]
Comprehensive income (loss) for the period attributable to:
Common shareholders	$ (4)	$ (5)	$ (1)	$ (3)

Consolidated Statement of Finan

Consolidated Statement of Financial Position - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 2,342	$ 1,787
Trade and other receivables	1,041	1,151
Other financial assets	77	612
Prepaid expenses and other current assets	425	425
Current assets	3,885	3,975
Property and equipment, net	482	545
Computer software, net	819	830
Other identifiable intangible assets, net	3,368	3,427
Goodwill	5,992	5,976
Equity method investments	7,913	1,136
Other non-current assets	929	788
Deferred tax	1,173	1,204
Total assets	24,561	17,881
Liabilities
Payables, accruals and provisions	1,023	1,159
Current tax liabilities	663	251
Deferred revenue	923	866
Other financial liabilities	158	376
Current liabilities	2,767	2,652
Long-term indebtedness	3,806	3,772
Provisions and other non-current liabilities	927	1,083
Deferred tax	1,284	394
Total liabilities	8,784	7,901
Equity
Capital	5,502	5,458
Retained earnings	11,010	5,211
Accumulated other comprehensive loss	(735)	(689)
Total equity	15,777	9,980
Total liabilities and equity	$ 24,561	$ 17,881

Consolidated Statement of Cash

Consolidated Statement of Cash Flow - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
OPERATING ACTIVITIES
Earnings from continuing operations	$ 1,072	$ 131	$ 6,105	$ 322
Adjustments for:
Depreciation	42	43	88	83
Share of post-tax (earnings) losses in equity method investments	(1,092)	153	(7,389)	207
Deferred tax	249	(34)	923	(37)
Other	33	(17)	63	(6)
Changes in working capital and other items	15	(7)	800	(250)
Operating cash flows from continuing operations	471	417	888	608
Operating cash flows from discontinued operations	(9)	5	(46)	(10)
Net cash provided by operating activities	462	422	842	598
INVESTING ACTIVITIES
Acquisitions, net of cash acquired	0	2	(3)	(122)
Proceeds from disposals of businesses and investments	10	4	15	1
Dividend from sale of LSEG shares	0	0	994	0
Capital expenditures	(113)	(145)	(233)	(287)
Proceeds from disposals of property and equipment	0	45	0	64
Other investing activities	52	1	53	2
Taxes paid on sale of Refinitiv and LSEG shares	(438)	0	(444)	0
Investing cash flows from continuing operations	(489)	(93)	382	(342)
Investing cash flows from discontinued operations	0	0	(42)	0
Net cash (used in) provided by investing activities	(489)	(93)	340	(342)
FINANCING ACTIVITIES
Proceeds from debt	0	999	0	2,019
Repayments of debt	0	(1,000)	0	(1,645)
Net borrowings under short-term loan facilities	0	0	0	118
Payments of lease principal	(22)	(18)	(43)	(36)
Repurchases of common shares	0	0	(200)	(200)
Other financing activities	0	(4)	5	(16)
Net cash used in financing activities	(216)	(205)	(627)	(125)
(Decrease) increase in cash and bank overdrafts	(243)	124	555	131
Translation adjustments	1	0	0	(10)
Cash and bank overdrafts at beginning of period	2,584	822	1,787	825
Cash and bank overdrafts at end of period	2,342	946	2,342	946
Cash and bank overdrafts at end of period comprised of:
Cash and cash equivalents	2,342	946	2,342	946
Supplemental cash flow information is provided in note 16.
Interest paid, net of debt-related hedges	(67)	(62)	(81)	(83)
Interest received	0	1	1	4
Income taxes paid	(503)	(18)	(589)	(34)
Preference shares [member]
FINANCING ACTIVITIES
Dividends paid	0	0	(1)	(1)
Common shares [member]
FINANCING ACTIVITIES
Dividends paid	(194)	(182)	(388)	(364)
Computer software [member]
Adjustments for:
Amortization expense	122	118	237	229
Other identifiable intangible assets [member]
Adjustments for:
Amortization expense	$ 30	$ 30	$ 61	$ 60

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	Preference shares [member]	Number of common shares [member]	Stated share capital [member]	Contributed surplus [member]	Total capital [member]	Retained earnings [member]	Retained earnings [member]Preference shares [member]	Retained earnings [member]Number of common shares [member]	Unrecognized loss on financial instruments [member]	Foreign currency translation adjustments [member]	Total accumulated other comprehensive loss AOCL [member]
Balance at Dec. 31, 2019	$ 9,560			$ 3,576	$ 1,801	$ 5,377	$ 4,965			$ (3)	$ (779)	$ (782)
Statement [LineItems]
Net earnings	319						319
Dividends declared		$ (1)	$ (376)					$ (1)	$ (376)
Other comprehensive income (loss)	(227)						19			(29)	(217)	(246)
Shares issued under Dividend Reinvestment Plan ("DRIP")	12			12		12
Total comprehensive income (loss)	92						338			(29)	(217)	(246)
Repurchases of common shares	0			2		2	(2)
Stock compensation plans	22			96	(74)	22
Balance at Jun. 30, 2020	9,309			3,686	1,727	5,413	4,924			(32)	(996)	(1,028)
Balance at Dec. 31, 2020	9,980			3,719	1,739	5,458	5,211			(8)	(681)	(689)
Statement [LineItems]
Net earnings	6,104						6,104
Dividends declared		$ (1)	$ (400)					$ (1)	$ (400)
Other comprehensive income (loss)	50						96			19	(65)	(46)
Shares issued under Dividend Reinvestment Plan ("DRIP")	12			12		12
Total comprehensive income (loss)	6,154						6,200			19	(65)	(46)
Stock compensation plans	32			84	(52)	32
Balance at Jun. 30, 2021	$ 15,777			$ 3,815	$ 1,687	$ 5,502	$ 11,010			$ 11	$ (746)	$ (735)

Business Description and Basis

Business Description and Basis of Preparation	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Business Description and Basis of Preparation	Note 1: Business Description and Basis of Preparation General business description Thomson Reuters Corporation (the “Company” or “Thomson Reuters”) is an Ontario, Canada corporation with common shares listed on the Toronto Stock Exchange (“TSX”) and the New York Stock Exchange (“NYSE”) and Series II preference shares listed on the TSX. The Company is a leading provider of business information services. The Company’s products include highly specialized information-enabled software and tools for legal, tax, accounting and compliance professionals combined with the world’s most global news service - Reuters. These unaudited interim consolidated financial statements (“interim financial statements”) wer e Basis of preparation The interim financial statements were prepared using the same accounting policies and methods as those used in the Company’s consolidated financial statements for the year ended December 31, 2020. The interim financial statements comply with International Accounting Standard 34, Interim Financial Reporting The preparation of financial statements in accordance with IAS 34 requires the use of certain critical accounting estimates. It also requires management to exercise judgment in applying the Company’s accounting policies. The areas involving more judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements have been disclosed in note 2 of the consolidated financial statements for the year ended December 31, 2020. The global economy continues to experience substantial disruption due to concerns regarding resurgences and new strains of COVID-19, COVID-19 The accompanying interim financial statements include all adjustments, composed of normal recurring adjustments, considered necessary by management to fairly state the Company’s results of operations, financial position and cash flows. The operating results for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These interim financial statements should be read in conjunction with the Company’s consolidated financial statements for the year ended December 31, 2020, which are included in the Company’s 2020 annual report. References to “$” are to U.S. dollars and references to “C$” are to Canadian dollars. Change Program In February 2021, the Company announced a two-year company, and from a content provider to a content-driven technology company (see note 5).

Revenues

Revenues	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Revenues	Note 2: Revenues Revenues by type and geography The following tables disaggregate revenues by type and geography and reconciles them to reportable segments (see note 3). Revenues by type Legal Corporates Tax & Accounting Reuters News Global Print Total Three months ended June 30, 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 Recurring 626 580 300 282 150 136 144 141 - - 1,220 1,139 Transactions 47 40 48 47 47 32 24 14 - - 166 133 Global Print - - - - - - - - 147 134 147 134 Eliminations/Rounding - - - - - - - - - - (1) (1) Total 673 620 348 329 197 168 168 155 147 134 1,532 1,405 Revenues by type Legal Corporates Tax & Accounting Reuters News Global Print Total Six months ended June 30, 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 Recurring 1,247 1,167 595 563 310 294 288 283 - - 2,440 2,307 Transactions 94 79 137 133 112 92 40 27 - - 383 331 Global Print - - - - - - - - 290 289 290 289 Eliminations/Rounding - - - - - - - - - - (1) (2) Total 1,341 1,246 732 696 422 386 328 310 290 289 3,112 2,925 Revenues by geography (country of destination) Legal Corporates Tax & Accounting Reuters News Global Print Total Three months ended June 30, 2021 2020 2021 2020 2021 2020 2021 (1) 2020 2021 2020 2021 2020 U.S. 532 499 287 270 151 131 21 107 104 97 1,095 1,104 Canada (country of domicile) 15 13 3 2 11 8 1 1 19 16 49 40 Other 6 7 11 11 23 17 2 3 5 4 47 42 Americas (North America, Latin 553 519 301 283 185 156 24 111 128 117 1,191 1,186 U.K. 69 58 27 28 7 6 103 5 9 7 215 104 Other 17 13 11 10 - 2 28 25 4 4 60 54 EMEA (Europe, Middle East 86 71 38 38 7 8 131 30 13 11 275 158 Asia Pacific 34 30 9 8 5 4 13 14 6 6 67 62 Eliminations/Rounding - - - - - - - - - - (1) (1) Total 673 620 348 329 197 168 168 155 147 134 1,532 1,405 Revenues by geography (country of destination) Legal Corporates Tax & Accounting Reuters News Global Print Total Six months ended June 30, 2021 2020 2021 2020 2021 2020 2021 (1) 2020 2021 2020 2021 2020 U.S. 1,058 1,002 610 578 338 313 70 211 205 212 2,281 2,316 Canada (country of domicile) 31 26 5 5 21 17 2 2 36 32 95 82 Other 11 11 23 23 44 38 4 5 9 8 91 85 Americas (North America, Latin 1,100 1,039 638 606 403 368 76 218 250 252 2,467 2,483 U.K. 137 117 53 55 11 10 169 12 18 16 388 210 Other 34 29 23 19 - 2 55 52 8 7 120 109 EMEA (Europe, Middle East 171 146 76 74 11 12 224 64 26 23 508 319 Asia Pacific 70 61 18 16 8 6 28 28 14 14 138 125 Eliminations/Rounding - - - - - - - - - - (1) (2) Total 1,341 1,246 732 696 422 386 328 310 290 289 3,112 2,925 (1) Following the sale of Refinitiv to London Stock Exchange Group (“LSEG”) in January of 2021, revenues from the Reuters News agreement to supply news and editorial content to Refinitiv were moved from the U.S. to the U.K.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Segment Information	Note 3: Segment Information The Company is organized as five reportable segments, reflecting how the businesses are managed. The accounting policies applied by the segments are the same as those applied by the Company. The segments offer products and services to target customers as described below. Legal Professionals The Legal Professionals segment serves law firms and governments with research and workflow products, focusing on intuiti v Corporates The Corporates segment serves corporate customers from small businesses to multinational organizations, including the seven largest global accounting firms, with the Company’s full suite of content-enabled technology solutions for in-house Tax & Accounting Professionals The Tax & Accounting Professionals segment serves tax, accounting and audit professionals in accounting firms (other than the seven largest, which are served by the Corporates segment) with research and workflow products, focusing on intuitive tax offerings and automating tax workflows. Reuters News The Reuters News segment supplies business, financial, national and international news to professionals via desktop terminals, including through Refinitiv, the world’s media organizations, industry events and directly to consumers. Global Print The Global Print segment provides legal and tax information primarily in print format to customers around the world. The Company also reports “Corporate costs”, which includes expenses for corporate functions and does not qualify as a reportable segment. Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Revenues Legal Professionals 673 620 1,341 1,246 Corporates 348 329 732 696 Tax & Accounting Professionals 197 168 422 386 Reuters News 168 155 328 310 Global Print 147 134 290 289 Eliminations/Rounding (1) (1) (1) (2) Consolidated revenues 1,532 1,405 3,112 2,925 Adjusted EBITDA Legal Professionals 285 254 564 484 Corporates 130 118 276 235 Tax & Accounting Professionals 72 54 170 138 Reuters News 35 25 63 44 Global Print 56 54 113 117 Corporate costs (76) (26) (126) (59) Adjusted EBITDA 502 479 1,060 959 Fair value adjustments (see note 5) (6) (3) (2) 20 Depreciation (42) (43) (88) (83) Amortization of computer software (122) (118) (237) (229) Amortization of other identifiable intangible assets (30) (30) (61) (60) Other operating gains, net 14 80 31 48 Consolidated operating profit 316 365 703 655 Net interest expense (49) (52) (100) (97) Other finance income (costs) 2 (13) (4) 34 Share of post-tax 1,092 (153) 7,389 (207) Tax expense (289) (16) (1,883) (63) Earnings from continuing operations 1,072 131 6,105 322 In accordance with IFRS 8, Operating Segments Adjusted EBITDA ● Segment adjusted EBITDA represents earnings from continuing operations before tax expense or benefit, net interest expense, other finance costs or income, depreciation, amortization of software and other identifiable intangible assets, the Company’s share of post-tax ● The Company does not consider these excluded items to be controllable operating activities for purposes of assessing the current performance of the reportable segments. ● Each segment includes an allocation of costs, based on usage or other applicable measures, for centralized support services such as technology, customer service, commercial policy, facilities management, and product and content development. Additionally, product costs are allocated when one segment sells products managed by another segment. ● Consolidated adjusted EBITDA is comprised of adjusted EBITDA from reportable segments and Corporate costs.

Seasonality

Seasonality	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Seasonality	Note 4: Seasonality The Company’s revenues and operating profit on a consolidated basis do not tend to be significantly impacted by seasonality as it records a large portion of its revenues ratably over the contract term and its costs are generally incurred evenly throughout the year. However, the Company’s revenues from quarter to consecutive quarter can be impacted by the release of certain tax products, which tend to be concentrated in the fourth quarter and, to a lesser extent, in the first quarter of the year. The seasonality of the Company’s operating profit may be further impacted in 2021 by the timing of significant Change Program costs it expects to incur. The seasonality of the Company’s revenues and operating expenses was impacted by COVID-19

Operating Expenses

Operating Expenses	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Operating Expenses	Note 5: Operating Expenses The components of operating expenses include the following: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Salaries, commissions and allowances 608 531 1,192 1,092 Share-based payments 16 18 34 35 Post-employment benefits 37 35 74 68 Total staff costs 661 584 1,300 1,195 Goods and services (1) 279 252 567 582 Content 67 63 138 131 Telecommunications 11 14 23 26 Facilities 12 13 24 32 Fair value adjustments (2) 6 3 2 (20) Total operating expenses 1,036 929 2,054 1,946 (1) Goods and services include professional fees, consulting and outsourcing services, contractors, selling and marketing, and other general and administrative costs. (2) Fair value adjustments primarily represent gains or losses due to changes in foreign currency exchange rates on intercompany balances that arise in the ordinary course of business. Operating expenses in the three and six months ended June 30, 2021 included $41 million and $52 .

Other Operating Gains, Net

Other Operating Gains, Net	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Other Operating Gains, Net	Note 6: Other Operating Gains, Net Other operating gains, net, were $14 million and $31 million for the three and six months ended June 30, 2021, respectively. Both periods included a gain on the sale of a business and income related to a license that allows the Refinitiv business of LSEG to use the “Reuters” mark to brand certain products and services. Additionally, the six-month period included a $ million benefit from the revaluation of warrants that the Company previously held in Refinitiv (see note 8). Other operating gains, net, were $80 million and $48 million for the three and six months ended June 30, 2020, respectively, and included a $54 million and $1 million, respectively, related to the revaluation of the warrants. Additionally, both periods included income related to the license for the “Reuters” mark referred to above and gains associated with the sale of certain real estate. The six-month period also included a gain associated with a distribution from an investment.

Finance Costs, Net

Finance Costs, Net	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Finance Costs, Net	Note 7: Finance Costs, Net The components of finance costs, net, include interest expense (in c Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Interest expense: Debt 40 39 80 76 Derivative financial instruments — hedging activities (1) - (2) - Other, net 5 5 12 8 Fair value gains on cash flow hedges, transfer from equity (17) (30) (32) (27) Net foreign exchange losses on debt 17 30 32 27 Net interest expense — debt and other 44 44 90 84 Net interest expense — leases 2 3 4 5 Net interest expense — pension and other post-employment benefit plans 3 6 7 11 Interest income - (1) (1) (3) Net interest expense 49 52 100 97 Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Net (gains) losses (2) 21 4 (15) Net gains on derivative instruments - (8) - (19) Other finance (income) costs (2) 13 4 (34) Net (gains) losses due to changes in foreign currency exchange rates Net (gains) losses due to changes in foreign currency exchange rates were principally comprised of amounts related to certain intercompany funding arrangements. Net gains on derivative instruments Net gains on derivative instruments were principally comprised of amounts related to foreign exchange contracts and the ineffective portion of cash flow hedges.

Equity Method Investments

Equity Method Investments	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Equity Method Investments	Note 8: Equity Method Investments On January 29, 2021, the Company and The Blackstone Group and its subsidiaries, and private equity funds affiliated with Blackstone (“Blackstone’s consortium”) sold a Subject to certain exceptions, the Company and Blackstone’s consortium have otherwise agreed to be subject to a lock-up for their LSEG shares through January 29, 2023. In each of years three and four following closing (starting on January 30, 2023 and January 30, 2024, respectively), the Company and Blackstone’s consortium will become entitled to sell in aggregate one-third of the LSEG shares that were issued. The lock-up arrangement will terminate on January 29, 2025. The ability of current and former members of Refinitiv senior management to sell shares held by them is also subject to certain restrictions. YPL is entitled to nominate lock-up The Company accounts for its investment in LSEG at fair value, based on the share price of LSEG, within “Share of post-tax earnings (losses) in equity method investments” in the consolidated income statement. The investment is subject to equity accounting because the LSEG shares are held through YPL, over which the Company has significant influence. As YPL owns only the financial investment in LSEG shares, which the parties intend to sell over time, and is not involved in operating LSEG or the Refinitiv business, the investment in LSEG shares held by YPL is accounted for at fair value. LSEG dividends distributed to the Company from YPL, which amounted to $51 million in the three and six months ended June 30, 2021 were included in “Other investing activities” in the consolidated statement of cash flow. Gain on sale of Refinitiv to LSEG and subsequent sale of LSEG shares The Company recognized a gain of $8,075 million related to the January sale of Refinitiv to LSEG within “Share of post-tax earnings (losses) in equity method investments” in the consolidated income statement. As of the January 29, 2021 closing date, the Company indirectly owned approximately 82.5 million LSEG shares, which included 4.5 million shares from the exercise of warrants the Company previously held in Refinitiv. The transaction was predominantly tax deferred for the Company except for approximately $640 million that is payable in 2021. In March 2021, as permitted under a lock-up exception, approximately 10.1 million of the Company’s LSEG shares were sold for pre-tax net proceeds of $994 million. Over the course of 2021, the Company will pay approximately $225 million of tax on the sale of these shares and will use the remaining after-tax proceeds to pay the approximately $640 million of taxes on the LSEG transaction. In the six months ended June 30, 2021, the Company paid $444 million of tax in connection with these transactions. The proceeds from the sale of the shares by YPL were distributed to the Company as a dividend that reduced the value of the investment. The proceeds and the associated tax payments were presented in “Net cash (used in) provided by investing activities” within the consolidated statement of cash flow. The Company’s share of post-tax Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 YPL (formerly RHL) 1,090 (155) 7,385 (213) Other equity method investments 2 2 4 6 Total share of post-tax 1,092 (153) 7,389 (207) In the three-month period ended June 30, 2021, the Company’s share of post-tax earnings in equity method investments was comprised of a $ million increase in the value of its LSEG investment and $ million of dividend income from LSEG. The six-month $ million gain from the sale of Refinitiv, but also included LSEG dividend income. These items were partly offset by a $573 million decline in the value of the LSEG investment subsequent to the sale date and $ million of post-tax The composition of equity method investments as reported in the consolidated statement of financial position is comprised of the following: June 30, December 31, 2021 2020 YPL (formerly RHL) 7,750 981 Other equity method investments 163 155 Total equity method investments 7,913 1,136 Set forth below is summarized financial information for 100% of YPL at June 30, 2021 (formerly RHL at June 30, 2020). Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Revenues - 1,588 551 3,221 Gain related to the sale of Refinitiv to LSEG - - 18,645 - Mark-to-market 2,427 - (1,147) - Dividend income 120 - 120 - Refinitiv net loss prior to its sale to LSEG - (326) (361) (419) Net earnings (loss) 2,547 (326) 17,257 (419) Remove: Net earnings attributable to non-controlling - (18) (11) (54) Net earnings (loss) attributable to YPL (formerly RHL) 2,547 (344) 17,246 (473) Other comprehensive (loss) income attributable to YPL (formerly RHL) - 128 (214) (111) Total comprehensive income (loss) attributable to YPL (formerly RHL) 2,547 (216) 17,032 (584) The Company’s share of net earnings attributable to YPL was $1,090 million and $7,385 million for the three and six months ended June 30, 2021, respectively. In the six-month period, the Company’s share of net earnings reflected changes in the Company’s percentage ownership of RHL and YPL during the first six The following table reconciles the net assets attributable to YPL to the Company’s carrying value of its investment in YPL: June 30, December 31, 2021 2020 Assets Current assets 7 2,071 Non-current 18,663 21,094 Total assets 18,670 23,165 Liabilities Current liabilities 7 3,995 Non-current 36 14,268 Total liabilities 43 18,263 Net assets 18,627 4,902 Non-controlling - (2,415) Net assets attributable to YPL (formerly RHL) 18,627 2,487 Net assets attributable to YPL (formerly RHL) - beginning period 2,487 3,278 Net earnings (loss) attributable to YPL (formerly RHL) 17,246 (1,232) Other comprehensive (loss) income attributable to YPL (formerly RHL) (214) 330 Other adjustments (1) 253 111 Distribution to owners (1,145) - Net assets attributable to YPL (formerly RHL) - ending period 18,627 2,487 Thomson Reuters % share 42.82% 45% Thomson Reuters $ share 7,976 1,119 Historical excluded equity adjustment (2) (226) (138) Thomson Reuters carrying amount 7,750 981 (1) Consists of equity transactions excluded from total comprehensive income (loss) attributable to YPL. (2) Represents the cumulative impact of equity transactions excluded from the Company’s investment in YPL.

Taxation

Taxation	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Taxation	Note 9: Taxation Tax expense was $289 million and $16 million for the three months ended June 30, 2021 and 2020, respectively, and $1,883 million and $63 million for the six months ended June 30, 2021 and 2020, respectively. The three and six month periods ended June 30, 2021 include d million of tax expense related to the Company’s earnings in equity method investments. In the six-month pre-tax pre-tax

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2021
Basic and diluted earnings per share [abstract]
Earnings Per Share	Note 10: Earnings Per Share Basic earnings per share was calculat e Diluted earnings per share was calculated using the denominator of the basic calculation described above adjusted to include the potentially dilutive effect of outstanding stock options and time-based restricted share units (“TRSUs”). Earnings used in determining consolidated earnings per share and earnings per share from continuing operations are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Earnings attributable to common shareholders 1,068 126 6,104 319 Less: Dividends declared on preference shares - - (1) (1) Earnings used in consolidated earnings per share 1,068 126 6,103 318 Less: Loss from discontinued operations, net of tax 4 5 1 3 Earnings used in earnings per share from continuing operations 1,072 131 6,104 321 The weighted-average number of common shares outstanding, as well as a reconciliation of the weighted-average number of common shares outstanding used in the basic earnings per share computation to the weighted-average number of common shares outstanding used in the diluted earnings per share computation, is presented below: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Weighted-average number of common shares outstanding 495,687,352 495,903,023 495,597,737 495,842,141 Weighted-average number of vested DSUs 410,886 414,092 418,730 418,929 Basic 496,098,238 496,317,115 496,016,467 496,261,070 Effect of stock options and TRSUs 1,160,834 1,263,224 1,093,324 1,318,061 Diluted 497,259,072 497,580,339 497,109,791 497,579,131

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Financial Instruments	Note 11: Financial Instruments Financial assets and liabilities Financial assets and liabilities in the consolidated statement of financial position were as follows: June 30, 2021 Assets/ Assets/ Assets at Fair Derivatives Total Cash and cash equivalents 352 1,990 - - 2,342 Trade and other receivables 1,041 - - - 1,041 Other financial assets - current 77 - - - 77 Other financial assets - non-current 31 37 50 125 243 Trade payables (see note 13) (146) - - - (146) Accruals (see note 13) (701) - - - (701) Other financial liabilitie s (1) (156) (2) - - (158) Long-term indebtedness (3,806) - - - (3,806) Other financial liabilities - non current (see note 14) (2) (192) - - - (192) Total (3,500) 2,025 50 125 (1,300) December 31, 2020 Assets/ Assets/ Assets at Fair Derivatives Total Cash and cash equivalents 311 1,476 - - 1,787 Trade and other receivables 1,151 - - - 1,151 Other financial assets - current 95 517 - - 612 Other financial assets - non-current 35 17 46 100 198 Trade payables (see note 13) (217) - - - (217) Accruals (see note 13) (761) - - - (761) Other financial liabilities - current (1)( 3 (374) (2) - - (376) Long-term indebtedness (3,772) - - - (3,772) Other financial liabilities - non current (see note 14) (2) (223) (1) - - (224) Total (3,755) 2,007 46 100 (1,602) (1) Includes lease liabilities of $79 (2) Includes lease liabilities of $192 (3) Includes a commitment to repurchase up to $200 million of common shares related to the Company’s pre-defined Cash and cash equivalents Of total cash and cash equivalents, $68 million and $61 million at June 30, 2021 and December 31, 2020, respectively, were held in subsidiaries which have regulatory restrictions, contractual restrictions or operate in countries where exchange controls and other legal restrictions apply and were therefore not available for general use by the Company. Debt-related activity The Company did not issue notes or make any debt repayments in the six months ended June 30, 2021. The following table provides information regarding notes that the Company issued and repaid in the six months ended June 30, 2020. MONTH/YEAR TRANSACTION PRINCIPAL AMOUNT (IN MILLIONS) Notes issued May 2020 2.239% Notes, due 2025 C$1,400 Notes repaid January 2020 3.309% Notes, due 2021 C$550 January 2020 3.95% Notes, due 2021 US$139 The notes issued in May 2020 were immediately swapped into U.S. dollars and the Company used the $999 million of net proceeds for general corporate purposes, which included repayment of borrowings under the Company’s credit facility. In January 2020, the Company repaid notes prior to their scheduled maturity dates for $640 million. This amount included early redemption premiums and the settlement of cross-currency swaps. The repayments were funded with commercial paper borrowings. Commercial paper program Under its commercial paper program, the Company may issue up to $1.8 billion of notes. There was no outstanding commercial paper at June 30, 2021 and December 31, 2020. In January 2020, the Company issued $630 million of commercial paper, the proceeds of which were used to redeem debt obligations ahead of their maturity. Most of the commercial paper was repaid in February and March 2020, primarily from funds borrowed under the Company’s credit facility. Credit facility The Company has a $1.8 billion syndicated credit facility agreement which matures in December 2024 and may be used to provide liquidity for general corporate purposes (including acquisitions or support for its commercial paper program). There were no outstanding borrowings under the credit facility at June 30, 2021 and December 31, 2020. The Company borrowed $1.0 billion in the first three months of 2020, of which a portion of the proceeds was used to repay commercial paper. In May 2020, the C 112.5 The U.K. Financial Conduct Authority, which regulates LIBOR, is phas ing The Company must maintain a ratio of net debt as defined in the credit agreement (total debt after swaps less cash and cash equivalents) as of the last day of each fiscal quarter to EBITDA as defined in the credit agreement (earnings before interest, income taxes, depreciation and amortization and other modifications described in the credit agreement) for the last four quarters ended of not more than 4.5: 1 would temporarily increase to 5.0: 1 4.5 1 :1. Fair Value The fair values of cash and cash equivalents, trade and other receivables, trade payables and accruals approximate their carrying amounts because of the short-term maturity of these instruments. The fair value of long-term debt and related derivative instruments is set forth below. Debt and Related Derivative Instruments Carrying Amounts Amounts recorded in the consolidated statement of financial position are referred to as “carrying amounts”. The carrying amounts of primary debt are reflected in “Long-term indebtedness” and “Current indebtedness” and the carrying amounts of derivative instruments are included in “Other financial assets” and “Other financial liabilities”, both current and non-current, Fair Value The fair value of debt is estimated based on either quoted market prices for similar issues or current rates offered to the Company for debt of the same maturity. The fair value of interest rate swaps is estimated based upon discounted cash flows using applicable current market rates and considering non-performance The following is a summary of debt and related derivative instruments that hedged the cash flows of debt: Carrying Amount Fair Value June 30, 2021 Primary Derivative Primary Derivative C 1,124 (125) 1,160 (125) $600, 4.30% Notes, due 2023 598 - 646 - $450, 3.85% Notes, due 2024 (1) 241 - 262 - $500, 3.35% Notes, due 2026 497 - 543 - $350, 4.50% Notes, due 2043 (1) 116 - 133 - $350, 5.65% Notes, due 2043 342 - 470 - $400, 5.50% Debentures, due 2035 396 - 528 - $500, 5.85% Debentures, due 2040 492 - 689 - Total 3,806 (125) 4,431 (125) Long-term portion 3,806 (125) Carrying Amount Fair Value December 31, 2020 Primary Derivative Primary Derivative C 1,093 (100) 1,151 (100) $600, 4.30% Notes, due 2023 597 - 657 - $450, 3.85% Notes, due 2024 (1) 241 - 266 - $500, 3.35% Notes, due 2026 497 - 557 - $350, 4.50% Notes, due 2043 (1) 116 - 130 - $350, 5.65% Notes, due 2043 342 - 471 - $400, 5.50% Debentures, due 2035 395 - 531 - $500, 5.85% Debentures, due 2040 491 - 696 - Total 3,772 (100) 4,459 (100) Long-term portion 3,772 (100) (1) Notes were partially redeemed in October 2018. Fair value estimation The following fair value measurement hierarchy is used for financial instruments that are measured in the consolidated statement of financial position at fair value: ● Level 1 - quoted prices (unadjusted) in active markets for identical assets or liabilities; ● Level 2 - inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly (that is, as prices) or indirectly (that is, derived from prices); and ● Level 3 - inputs for the asset or liability that are not based on observable market data (that is, unobservable inputs). The levels used to determine fair value measurements for those instruments carried at fair value in the consolidated statement of financial position are as follows: June 30, 2021 Total Assets Level 1 Level 2 Level 3 Balance Money market accounts - 1,990 - 1,990 Other receivables (1) - - 37 37 Financial assets at fair value through earnings - 1,990 37 2,027 Financial assets at fair value through other comprehensive income (2) 28 22 - 50 Derivatives used for hedging (3) - 125 - 125 Total assets 28 2,137 37 2,202 Liabilities Contingent consideration (4) - - (2) (2) Financial liabilities at fair value through earnings - - (2) (2) Total liabilities - - (2) (2) December 31, 2020 Total Assets Level 1 Level 2 Level 3 Balance Money market accounts - 1,476 - 1,476 Warrants (5) - - 517 517 Other receivables (1) - - 17 17 Financial assets at fair value through earnings - 1,476 534 2,010 Financial assets at fair value through other comprehensive income (2) 27 19 - 46 Derivatives used for hedging (3) - 100 - 100 Total assets 27 1,595 534 2,156 Liabilities Contingent consideration (4) - - (3) (3) Financial liabilities at fair value through earnings - - (3) (3) Total liabilities - - (3) (3) (1) Receivables under indemnification arrangement (see note 18). (2) Investments in entities over which the Company does not have control, joint control or significant influence. (3) Comprised of fixed-to-fixed (4) Obligations to pay additional consideration for prior acquisitions, based upon performance measures contractually agreed at the time of purchase. (5) Warrants related to the Company’s former investment in Refinitiv (see note 8). The receivable from the indemnification arrangement is a level 3 in the fair value measurement hierarchy. The increase in the receivable between December 31, 2020 and June 30, 2021 reflected additional payments that are expected to be recovered and a fair value loss based on interest rates associated with the indemnifying party’s credit profile. The following reflects the change in the fair value of the Refinitiv warrants, which are a level 3 in the fair value measurement hierarchy, for the six months ended June 30, 2021: Six months ended June 30, 2021 December 31, 2020 517 Gain recognized prior to the sale of Refinitiv to LSEG within other operating gains, net 9 Exercise of warrants on date of sale of Refinitiv to LSEG (see note 8) (526) June 30, 2021 - The Company recognizes transfers into and out of the fair value measurement hierarchy levels at the end of the reporting period in which the event or change in circumstances that caused the transfer occurred. There were no transfers between hierarchy levels for the six months ended June 30, 2021. Valuation Techniques The fair value of financial instruments that are not traded in an active market (for example, over-the-counter Specific valuation techniques used to value financial instruments include: ● Quoted market prices or dealer quotes for similar instruments; ● The fair value of cross-currency interest rate swaps are calculated as the present value of the estimated future cash flows based on observable yield curves; ● The fair value of other receivables considers estimated future cash flows, current market interest rates and non-performance ● The fair value of contingent consideration is calculated based on estimates of future revenue performance. Valuation of the Refinitiv Warrants at December 31, 2020 ● On August 1, 2019, the Company and private equity funds affiliated with Blackstone agreed to sell Refinitiv, in which the Company owned a 45% interest, to LSEG, in an all share transaction which closed on January 29, 2021 (see note 8). Under the terms of the warrant agreement, the transaction constituted a change in control whereby the exercise of the warrants in connection with the closing of the transaction entitled the Company to an additional 4.5 million shares of YPL. The value of the warrants at December 31, 2020 reflected the entry into a definitive agreement for the sale of the Refinitiv business on August 1, 2019. The closing of the transaction on January 29, 2021 was not considered an adjusting subsequent event, and therefore the value at December 31, 2020 was not adjusted to incorporate the closing of the transaction. As such, the value was primarily based on the number of incremental shares in YPL to which the Company was entitled upon closing and the share price of LSEG on December 31, 2020. The valuation also incorporated (on a weighted-average basis) other outcomes based on the likelihood (at the time) of the ● The Monte Carlo simulation approach, which was incorporated into the valuation of the Refinitiv warrants, generates values based on the random outcomes from a probability distribution. Key inputs under the Monte Carlo approach include d

Other Non-Current Assets

Other Non-Current Assets	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Other Non-Current Assets	Note 12: Other Non-Current June 30, December 31, 2021 2020 Net defined benefit plan surpluses 170 128 Cash surrender value of life insurance policies 344 334 Deferred commissions 101 105 Other financial assets (see note 11) 243 198 Other non-current (1) 71 23 Total other non-current 929 788 (1) Includes a tax receivable from HM Revenue & Customs (“HMRC”) of $56

Payables, Accruals and Provisio

Payables, Accruals and Provisions	6 Months Ended
	Jun. 30, 2021
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Payables, Accruals and Provisions	Note 13: Payables, Accruals and Provisions June 30, December 31, 2021 2020 Trade payables 146 217 Accruals 701 761 Provisions 108 111 Other current liabilities 68 70 Total payables, accruals and provisions 1,023 1,159

Provisions and Other Non-Curren

Provisions and Other Non-Current Liabilities	6 Months Ended
	Jun. 30, 2021
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Provisions and Other Non-Current Liabilities	Note 14: Provisions and Other Non-Current June 30, December 31, 2021 2020 Net defined benefit plan obligations 516 598 Other financial liabilities (see note 11) 192 224 Deferred compensation and employee incentives 105 111 Provisions 108 140 Other non-current 6 10 Total provisions and other non-current 927 1,083

Capital

Capital	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Capital	Note 15: Capital Share repurchases - Normal Course Issuer Bid (“NCIB”) The Company may buy back shares (and subsequently cancel them) from time to time as part of its capital strategy. On August 5, 2021, the Company announced that it plans to repurchase up to $1.2 billion of its common shares (see note 20). This new buyback program is in addition to the $200 million repurchase program that was completed in February 2021. Share repurchases are typically executed under a NCIB. Shares will be repurchased for the new buyback program under an amended NCIB, which was approved by the TSX. The amended NCIB will become effective on August 10, 2021. The amended NCIB increases the maximum number of common shares that may be repurchased by an additional 15 million. Under the amended NCIB, up to 20 million common shares may be repurchased between January 4, 2021 and January 3, 2022. The NCIB, as originally approved in December 2020, contemplated the repurchase of up to 5 million common shares. Under the amended NCIB, the Company may repurchase common shares in open market transactions on the TSX, the NYSE and/or other exchanges and alternative trading systems, if eligible, or by such other means as may be permitted by the TSX and/or NYSE or under applicable law, including private agreement purchases if the Company receives an issuer bid exemption order from applicable securities regulatory authorities in Canada for such purchases. The price that the Company will pay for shares in open market t The Company did not repurchase any shares in the three months ended June 30, 2021 and 2020. Details of share repurchases under the NCIB for the six months ended June 30, 2021 and 2020 were as follows: Six months ended June 30, 2021 2020 Share repurchases (millions of U.S. dollars) 200 200 Shares repurchased (number in millions) 2.5 2.6 Share repurchases - average price per share in U.S. dollars $ 81.45 $ 78.37 Decisions regarding any future repurchases will depend on factors, such as market conditions, share price, and other opportunities to invest capital for growth. The Company may elect to suspend or discontinue its share repurchases at any time, in accordance with applicable laws. From time to time when the Company does not possess material nonpublic information about itself or its securities, it may enter into a pre-defined plan with its broker to allow for the repurchase of shares at times when the Company ordinarily would not be active in the market due to its own internal trading blackout periods, insider trading rules or otherwise. Any such plans entered into with the Company’s broker will be adopted in accordance with applicable Canadian securities laws and the requirements of Rule 10b5-1 under the U.S. Securities Exchange Act of 1934, as amended. The Company entered into such a plan with its broker on December 2 9 Dividends Dividends on common shares are declared in U.S. dollars. In the consolidated statement of cash flow, dividends paid on common shares are shown net of amounts reinvested in the Company under its dividend reinvestment plan. Details of dividends declared per common share and dividends paid on common shares are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Dividends declared per common share $0.405 $0.380 $0.810 $0.760 Dividends declared 200 188 400 376 Dividends reinvested (6) (6) (12) (12) Dividends paid 194 182 388 364

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Supplemental Cash Flow Information	Note 16: Supplemental Cash Flow Information Details of “Other” in the consolidated statement of cash flow are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Non-cash 39 44 78 84 Net (gains) losses on foreign exchange and derivative (3) 13 3 (33) Net (gains) losses on disposals of businesses and investments (8) (2) (8) 1 Revaluation of Refinitiv warrants (see note 11) - (54) (9) (1) Fair value adjustments 6 3 2 (20) Other (1) (21) (3) (37) 33 (17) 63 (6) Details of “Changes in working capital and other items” are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Trade and other receivables 8 30 102 65 Prepaid expenses and other current assets 15 18 (1) (8) Other financial assets 1 2 18 41 Payables, accruals and provisions (46) (40) (175) (275) Deferred revenue 89 (21) 57 (54) Other financial liabilities - (2) (18) (41) Income taxes (1) (24) 23 860 62 Other (28) (17) (43) (40) 15 (7) 800 (250) (1) The six months ended June 30, 2021 reflects working capital associated with current tax liabilities on the LSEG transaction and subsequent sale of LSEG shares (see note 8). Details of income taxes paid are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Operating activities - continuing operations (65) (25) (101) (36) Operating activities - discontinued operations - 7 (2) 2 Investing activities - continuing operations (438) - (444) - Investing activities - discontinued operations (1) - - (42) - Total income taxes paid (503) (18) (589) (34) (1) Reflects payments made to HMRC (see note 18).

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Acquisitions	Note 17: Acquisitions Acquisitions primarily comprise the purchase of businesses that are integrated into existing operations to broaden the Company’s range of offerings to customers as well as its presence in global markets. The results of acquired businesses are included in the consolidated financial statements from the date of acquisition. Acquisitions also include investments in equity method investments. Acquisition activity The Company did not acquire any businesses in the six months ended June 30, 2021 and acquired one business in the six months ended June 30, 2020. The related total consideration was as follows: Six months ended June 30, Total consideration 2021 2020 Business acquired - 121 Less: Cash acquired - (1) Business acquired, net of cash - 120 Contingent consideration payments 3 2 3 122 The following provides a brief description of the acquisition completed during the six months ended June 30, 2020: Date Company Acquiring Segment Description March 2020 Pondera Solutions Legal Professionals A provider of technology and advanced analytics to combat fraud, waste and abuse in healthcare and large government programs. Purchase price allocation Purchase price allocations related to certain acquisitions may be subject to adjustment pending completion of final valuations. The details of net assets acquired were as follows: Six months ended June 30, 2020 Cash and cash equivalents 1 Trade receivables 3 Current assets 4 Computer software 16 Other identifiable intangible assets 6 Total assets 26 Payables and accruals (2) Deferred revenue (1) Other financial liabilities (2) Current liabilities (5) Provisions and other non-current (1) Deferred tax (3) Total liabilities (9) Net assets acquired 17 Goodwill 104 Total 121 The excess of the purchase price over the net assets acquired was recorded as goodwill and reflects synergies and the value of the acquired workforce. The majority of goodwill for the acquisition completed in 2020 is not expected to be deductible for tax purposes. The acquisition transaction was completed by acquiring all equity interests of the acquired business. Other The revenues and operating profit of the acquired business since the date of acquisition were not material to the Company’s results of operations.

Contingencies

Contingencies	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Contingencies	Note 18: Contingencies Lawsuits and legal claims The Company is engaged in various legal proceedings, claims, audits and investigations that have arisen in the ordinary course of business. These matters include, but are not limited to, employment matters, commercial matters, defamation claims and intellectual property infringement claims. The outcome of all of the matters against the Company is subject to future resolution, including the uncertainties of litigation. Based on information currently known to the Company and after consultation with outside legal counsel, management believes that the ultimate resolution of any such matters, individually or in the aggregate, will not have a material adverse impact on the Company’s financial condition taken as a whole. Uncertain tax positions The Company is subject to taxation in numerous jurisdictions and is routinely under audit by many different taxing authorities in the ordinary course of business. There are many transactions and calculations during the course of business for which the ultimate tax determination is uncertain, as taxing authorities may challenge some of the Company’s positions and propose adjustments or changes to its tax filings. As a result, the Company maintains provisions for uncertain tax positions that it believes appropriately reflect its risk. These provisions are made using the Company’s best estimates of the amount expected to be paid based on a qualitative assessment of all relevant factors. When appropriate, the Company performs an expected value calculation to determine its provisions. The Company reviews the adequacy of these provisions at the end of each reporting period and adjusts them based on changing facts and circumstances. Due to the uncertainty associated with tax audits, it is possible that at some future date, liabilities resulting from such audits or related litigation could vary significantly from the Company’s provisions. However, based on currently enacted legislation, information currently known by the Company and after consultation with outside tax advisors, management believes that the ultimate resolution of any such matters, individually or in the aggregate, will not have a material adverse impact on the Company’s financial condition taken as a whole. In February 2018, the U.K. tax authority, HM Revenue & Customs (“HMRC”), issued notices of assessment under the Diverted Profits Tax (“DPT”) regime for the 2015 taxation year of certain of the Company’s current and former U.K. affiliates. The Company paid $31 million in tax, as required under the notices. As management does not believe that these U.K. affiliates fall within the scope of the Diverted Profits Tax regime, the Company appealed these assessments in July 2019 to obtain a refund. In February 2021, HMRC issued DPT notices for the 2016 taxation year aggregating $87 million, which the Company paid in March 2021, as required under the notices. In June 2021, HMRC issued preliminary DPT notices for the 2018 taxation year for approximately $266 million, which the Company expects to be required to pay in September 2021. In addition, based on recent discussions with HMRC, management believes it is reasonably possible that HMRC may issue similar notices in the next six months for another taxation year for as much as $80 million. These outstanding and expected assessments largely relate to businesses that the Company has sold. Certain of the assessments are subject to indemnity arrangements under which the Company has been or will be required to pay additional taxes to HMRC, including those attributable to the indemnity counterparty. The Company intends to vigorously defend its position by contesting the outstanding and expected assessments through all available administrative and judicial remedies. Any payments made by the Company are not a reflection of its view on the merits of the case. Because management believes that its position is supported by the weight of law, it does not believe that the resolution of this matter will have a material adverse effect on the Company’s financial condition taken as a whole. As a result, the Company would expect to record substantially all of these payments as non-current receivables from HMRC and the indemnity counterparty on its financial statements since the Company would expect to receive refunds of substantially all of the aggregate amount paid pursuant to these notices of assessment. The Company expects that its existing sources of liquidity will be sufficient to fund any required payments.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2021
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Related Party Transactions	Note 19: Related Party Transactions As of June 30, 2021, the Company’s principal shareholder, The Woodbridge Company Limited, beneficially owned approximately 66% of the Company’s common shares. I million from YPL, an equity method investment . I dividend of million from YPL, reflecting the Company’s portion of dividends from LSEG (see note 8). Except for the above transactions, there were no new significant related party transactions during the first six months of 2021. Refer to “Related party transactions” disclosed in note 31 of the Company’s consolidated financial statements for the year ended December 31, 2020, which are included in the Company’s 2020 annual report, for information regarding related party transactions.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Subsequent Events	Note 20: Subsequent Events Share Repurchases On August 5, 2021, the Company announced that it plans to repurchase up to $1.2 billion of its common shares. The completion of this program will depend on factors such as market conditions, share price and other opportunities to invest capital for growth.

Business Description and Basi_2

Business Description and Basis of Preparation (Policies)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
General business description	General business description Thomson Reuters Corporation (the “Company” or “Thomson Reuters”) is an Ontario, Canada corporation with common shares listed on the Toronto Stock Exchange (“TSX”) and the New York Stock Exchange (“NYSE”) and Series II preference shares listed on the TSX. The Company is a leading provider of business information services. The Company’s products include highly specialized information-enabled software and tools for legal, tax, accounting and compliance professionals combined with the world’s most global news service - Reuters. These unaudited interim consolidated financial statements (“interim financial statements”) wer e
Basis of preparation 1	Basis of preparation The interim financial statements were prepared using the same accounting policies and methods as those used in the Company’s consolidated financial statements for the year ended December 31, 2020. The interim financial statements comply with International Accounting Standard 34, Interim Financial Reporting The preparation of financial statements in accordance with IAS 34 requires the use of certain critical accounting estimates. It also requires management to exercise judgment in applying the Company’s accounting policies. The areas involving more judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements have been disclosed in note 2 of the consolidated financial statements for the year ended December 31, 2020. The global economy continues to experience substantial disruption due to concerns regarding resurgences and new strains of COVID-19, COVID-19 The accompanying interim financial statements include all adjustments, composed of normal recurring adjustments, considered necessary by management to fairly state the Company’s results of operations, financial position and cash flows. The operating results for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These interim financial statements should be read in conjunction with the Company’s consolidated financial statements for the year ended December 31, 2020, which are included in the Company’s 2020 annual report. References to “$” are to U.S. dollars and references to “C$” are to Canadian dollars. Change Program In February 2021, the Company announced a two-year company, and from a content provider to a content-driven technology company (see note 5).

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Summary of Revenues by Type and Geography	The following tables disaggregate revenues by type and geography and reconciles them to reportable segments (see note 3). Revenues by type Legal Corporates Tax & Accounting Reuters News Global Print Total Three months ended June 30, 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 Recurring 626 580 300 282 150 136 144 141 - - 1,220 1,139 Transactions 47 40 48 47 47 32 24 14 - - 166 133 Global Print - - - - - - - - 147 134 147 134 Eliminations/Rounding - - - - - - - - - - (1) (1) Total 673 620 348 329 197 168 168 155 147 134 1,532 1,405 Revenues by type Legal Corporates Tax & Accounting Reuters News Global Print Total Six months ended June 30, 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 2021 2020 Recurring 1,247 1,167 595 563 310 294 288 283 - - 2,440 2,307 Transactions 94 79 137 133 112 92 40 27 - - 383 331 Global Print - - - - - - - - 290 289 290 289 Eliminations/Rounding - - - - - - - - - - (1) (2) Total 1,341 1,246 732 696 422 386 328 310 290 289 3,112 2,925 Revenues by geography (country of destination) Legal Corporates Tax & Accounting Reuters News Global Print Total Three months ended June 30, 2021 2020 2021 2020 2021 2020 2021 (1) 2020 2021 2020 2021 2020 U.S. 532 499 287 270 151 131 21 107 104 97 1,095 1,104 Canada (country of domicile) 15 13 3 2 11 8 1 1 19 16 49 40 Other 6 7 11 11 23 17 2 3 5 4 47 42 Americas (North America, Latin 553 519 301 283 185 156 24 111 128 117 1,191 1,186 U.K. 69 58 27 28 7 6 103 5 9 7 215 104 Other 17 13 11 10 - 2 28 25 4 4 60 54 EMEA (Europe, Middle East 86 71 38 38 7 8 131 30 13 11 275 158 Asia Pacific 34 30 9 8 5 4 13 14 6 6 67 62 Eliminations/Rounding - - - - - - - - - - (1) (1) Total 673 620 348 329 197 168 168 155 147 134 1,532 1,405 Revenues by geography (country of destination) Legal Corporates Tax & Accounting Reuters News Global Print Total Six months ended June 30, 2021 2020 2021 2020 2021 2020 2021 (1) 2020 2021 2020 2021 2020 U.S. 1,058 1,002 610 578 338 313 70 211 205 212 2,281 2,316 Canada (country of domicile) 31 26 5 5 21 17 2 2 36 32 95 82 Other 11 11 23 23 44 38 4 5 9 8 91 85 Americas (North America, Latin 1,100 1,039 638 606 403 368 76 218 250 252 2,467 2,483 U.K. 137 117 53 55 11 10 169 12 18 16 388 210 Other 34 29 23 19 - 2 55 52 8 7 120 109 EMEA (Europe, Middle East 171 146 76 74 11 12 224 64 26 23 508 319 Asia Pacific 70 61 18 16 8 6 28 28 14 14 138 125 Eliminations/Rounding - - - - - - - - - - (1) (2) Total 1,341 1,246 732 696 422 386 328 310 290 289 3,112 2,925 (1) Following the sale of Refinitiv to London Stock Exchange Group (“LSEG”) in January of 2021, revenues from the Reuters News agreement to supply news and editorial content to Refinitiv were moved from the U.S. to the U.K.

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Revenues and Adjusted EBITDA by Segment	The Company also reports “Corporate costs”, which includes expenses for corporate functions and does not qualify as a reportable segment. Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Revenues Legal Professionals 673 620 1,341 1,246 Corporates 348 329 732 696 Tax & Accounting Professionals 197 168 422 386 Reuters News 168 155 328 310 Global Print 147 134 290 289 Eliminations/Rounding (1) (1) (1) (2) Consolidated revenues 1,532 1,405 3,112 2,925 Adjusted EBITDA Legal Professionals 285 254 564 484 Corporates 130 118 276 235 Tax & Accounting Professionals 72 54 170 138 Reuters News 35 25 63 44 Global Print 56 54 113 117 Corporate costs (76) (26) (126) (59) Adjusted EBITDA 502 479 1,060 959 Fair value adjustments (see note 5) (6) (3) (2) 20 Depreciation (42) (43) (88) (83) Amortization of computer software (122) (118) (237) (229) Amortization of other identifiable intangible assets (30) (30) (61) (60) Other operating gains, net 14 80 31 48 Consolidated operating profit 316 365 703 655 Net interest expense (49) (52) (100) (97) Other finance income (costs) 2 (13) (4) 34 Share of post-tax 1,092 (153) 7,389 (207) Tax expense (289) (16) (1,883) (63) Earnings from continuing operations 1,072 131 6,105 322

Operating Expenses (Tables)

Operating Expenses (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Components of Operating Expenses	The components of operating expenses include the following: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Salaries, commissions and allowances 608 531 1,192 1,092 Share-based payments 16 18 34 35 Post-employment benefits 37 35 74 68 Total staff costs 661 584 1,300 1,195 Goods and services (1) 279 252 567 582 Content 67 63 138 131 Telecommunications 11 14 23 26 Facilities 12 13 24 32 Fair value adjustments (2) 6 3 2 (20) Total operating expenses 1,036 929 2,054 1,946 (1) Goods and services include professional fees, consulting and outsourcing services, contractors, selling and marketing, and other general and administrative costs. (2) Fair value adjustments primarily represent gains or losses due to changes in foreign currency exchange rates on intercompany balances that arise in the ordinary course of business.

Finance Costs, Net (Tables)

Finance Costs, Net (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Components of Finance Costs, Net, Include Interest Expense (Income)	The components of finance costs, net, include interest expense (in c Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Interest expense: Debt 40 39 80 76 Derivative financial instruments — hedging activities (1) - (2) - Other, net 5 5 12 8 Fair value gains on cash flow hedges, transfer from equity (17) (30) (32) (27) Net foreign exchange losses on debt 17 30 32 27 Net interest expense — debt and other 44 44 90 84 Net interest expense — leases 2 3 4 5 Net interest expense — pension and other post-employment benefit plans 3 6 7 11 Interest income - (1) (1) (3) Net interest expense 49 52 100 97
Components of Finance Costs, Net, Include Other Finance Costs (Income)	Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Net (gains) losses (2) 21 4 (15) Net gains on derivative instruments - (8) - (19) Other finance (income) costs (2) 13 4 (34)

Equity Method Investments (Tabl

Equity Method Investments (Tables)	6 Months Ended
	Jun. 30, 2021
Investments accounted for using equity method [abstract]
Share of Post-tax Earnings (Losses) in Equity Method Investments Reported in Consolidated Income Statement	The Company’s share of post-tax Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 YPL (formerly RHL) 1,090 (155) 7,385 (213) Other equity method investments 2 2 4 6 Total share of post-tax 1,092 (153) 7,389 (207)
Summary of Equity Method Investments Reported in Consolidated Statement of Financial Position	The composition of equity method investments as reported in the consolidated statement of financial position is comprised of the following: June 30, December 31, 2021 2020 YPL (formerly RHL) 7,750 981 Other equity method investments 163 155 Total equity method investments 7,913 1,136
Summary of Financial Information for YPL	Set forth below is summarized financial information for 100% of YPL at June 30, 2021 (formerly RHL at June 30, 2020). Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Revenues - 1,588 551 3,221 Gain related to the sale of Refinitiv to LSEG - - 18,645 - Mark-to-market 2,427 - (1,147) - Dividend income 120 - 120 - Refinitiv net loss prior to its sale to LSEG - (326) (361) (419) Net earnings (loss) 2,547 (326) 17,257 (419) Remove: Net earnings attributable to non-controlling - (18) (11) (54) Net earnings (loss) attributable to YPL (formerly RHL) 2,547 (344) 17,246 (473) Other comprehensive (loss) income attributable to YPL (formerly RHL) - 128 (214) (111) Total comprehensive income (loss) attributable to YPL (formerly RHL) 2,547 (216) 17,032 (584) The following table reconciles the net assets attributable to YPL to the Company’s carrying value of its investment in YPL: June 30, December 31, 2021 2020 Assets Current assets 7 2,071 Non-current 18,663 21,094 Total assets 18,670 23,165 Liabilities Current liabilities 7 3,995 Non-current 36 14,268 Total liabilities 43 18,263 Net assets 18,627 4,902 Non-controlling - (2,415) Net assets attributable to YPL (formerly RHL) 18,627 2,487 Net assets attributable to YPL (formerly RHL) - beginning period 2,487 3,278 Net earnings (loss) attributable to YPL (formerly RHL) 17,246 (1,232) Other comprehensive (loss) income attributable to YPL (formerly RHL) (214) 330 Other adjustments (1) 253 111 Distribution to owners (1,145) - Net assets attributable to YPL (formerly RHL) - ending period 18,627 2,487 Thomson Reuters % share 42.82% 45% Thomson Reuters $ share 7,976 1,119 Historical excluded equity adjustment (2) (226) (138) Thomson Reuters carrying amount 7,750 981 (1) Consists of equity transactions excluded from total comprehensive income (loss) attributable to YPL. (2) Represents the cumulative impact of equity transactions excluded from the Company’s investment in YPL.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2021
Basic and diluted earnings per share [abstract]
Reconciliation of Earnings Used for Earnings per Share Calculations	Earnings used in determining consolidated earnings per share and earnings per share from continuing operations are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Earnings attributable to common shareholders 1,068 126 6,104 319 Less: Dividends declared on preference shares - - (1) (1) Earnings used in consolidated earnings per share 1,068 126 6,103 318 Less: Loss from discontinued operations, net of tax 4 5 1 3 Earnings used in earnings per share from continuing operations 1,072 131 6,104 321
Weighted Average Common Shares	The weighted-average number of common shares outstanding, as well as a reconciliation of the weighted-average number of common shares outstanding used in the basic earnings per share computation to the weighted-average number of common shares outstanding used in the diluted earnings per share computation, is presented below: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Weighted-average number of common shares outstanding 495,687,352 495,903,023 495,597,737 495,842,141 Weighted-average number of vested DSUs 410,886 414,092 418,730 418,929 Basic 496,098,238 496,317,115 496,016,467 496,261,070 Effect of stock options and TRSUs 1,160,834 1,263,224 1,093,324 1,318,061 Diluted 497,259,072 497,580,339 497,109,791 497,579,131

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Summary of Financial Assets and Liabilities	Financial assets and liabilities in the consolidated statement of financial position were as follows: June 30, 2021 Assets/ Assets/ Assets at Fair Derivatives Total Cash and cash equivalents 352 1,990 - - 2,342 Trade and other receivables 1,041 - - - 1,041 Other financial assets - current 77 - - - 77 Other financial assets - non-current 31 37 50 125 243 Trade payables (see note 13) (146) - - - (146) Accruals (see note 13) (701) - - - (701) Other financial liabilitie s (1) (156) (2) - - (158) Long-term indebtedness (3,806) - - - (3,806) Other financial liabilities - non current (see note 14) (2) (192) - - - (192) Total (3,500) 2,025 50 125 (1,300) December 31, 2020 Assets/ Assets/ Assets at Fair Derivatives Total Cash and cash equivalents 311 1,476 - - 1,787 Trade and other receivables 1,151 - - - 1,151 Other financial assets - current 95 517 - - 612 Other financial assets - non-current 35 17 46 100 198 Trade payables (see note 13) (217) - - - (217) Accruals (see note 13) (761) - - - (761) Other financial liabilities - current (1)( 3 (374) (2) - - (376) Long-term indebtedness (3,772) - - - (3,772) Other financial liabilities - non current (see note 14) (2) (223) (1) - - (224) Total (3,755) 2,007 46 100 (1,602) (1) Includes lease liabilities of $79 (2) Includes lease liabilities of $192 (3) Includes a commitment to repurchase up to $200 million of common shares related to the Company’s pre-defined
Summary of Debt and Related Derivative Instruments	The following is a summary of debt and related derivative instruments that hedged the cash flows of debt: Carrying Amount Fair Value June 30, 2021 Primary Derivative Primary Derivative C 1,124 (125) 1,160 (125) $600, 4.30% Notes, due 2023 598 - 646 - $450, 3.85% Notes, due 2024 (1) 241 - 262 - $500, 3.35% Notes, due 2026 497 - 543 - $350, 4.50% Notes, due 2043 (1) 116 - 133 - $350, 5.65% Notes, due 2043 342 - 470 - $400, 5.50% Debentures, due 2035 396 - 528 - $500, 5.85% Debentures, due 2040 492 - 689 - Total 3,806 (125) 4,431 (125) Long-term portion 3,806 (125) Carrying Amount Fair Value December 31, 2020 Primary Derivative Primary Derivative C 1,093 (100) 1,151 (100) $600, 4.30% Notes, due 2023 597 - 657 - $450, 3.85% Notes, due 2024 (1) 241 - 266 - $500, 3.35% Notes, due 2026 497 - 557 - $350, 4.50% Notes, due 2043 (1) 116 - 130 - $350, 5.65% Notes, due 2043 342 - 471 - $400, 5.50% Debentures, due 2035 395 - 531 - $500, 5.85% Debentures, due 2040 491 - 696 - Total 3,772 (100) 4,459 (100) Long-term portion 3,772 (100) (1) Notes were partially redeemed in October 2018.
Summmary of Information Regarding Notes Repaid	MONTH/YEAR TRANSACTION PRINCIPAL AMOUNT (IN MILLIONS) Notes issued May 2020 2.239% Notes, due 2025 C$1,400 Notes repaid January 2020 3.309% Notes, due 2021 C$550 January 2020 3.95% Notes, due 2021 US$139
Fair Value Hierarchy	The levels used to determine fair value measurements for those instruments carried at fair value in the consolidated statement of financial position are as follows: June 30, 2021 Total Assets Level 1 Level 2 Level 3 Balance Money market accounts - 1,990 - 1,990 Other receivables (1) - - 37 37 Financial assets at fair value through earnings - 1,990 37 2,027 Financial assets at fair value through other comprehensive income (2) 28 22 - 50 Derivatives used for hedging (3) - 125 - 125 Total assets 28 2,137 37 2,202 Liabilities Contingent consideration (4) - - (2) (2) Financial liabilities at fair value through earnings - - (2) (2) Total liabilities - - (2) (2) December 31, 2020 Total Assets Level 1 Level 2 Level 3 Balance Money market accounts - 1,476 - 1,476 Warrants (5) - - 517 517 Other receivables (1) - - 17 17 Financial assets at fair value through earnings - 1,476 534 2,010 Financial assets at fair value through other comprehensive income (2) 27 19 - 46 Derivatives used for hedging (3) - 100 - 100 Total assets 27 1,595 534 2,156 Liabilities Contingent consideration (4) - - (3) (3) Financial liabilities at fair value through earnings - - (3) (3) Total liabilities - - (3) (3) (1) Receivables under indemnification arrangement (see note 18). (2) Investments in entities over which the Company does not have control, joint control or significant influence. (3) Comprised of fixed-to-fixed (4) Obligations to pay additional consideration for prior acquisitions, based upon performance measures contractually agreed at the time of purchase. (5) Warrants related to the Company’s former investment in Refinitiv (see note 8). The Company recognizes transfers into and out of the fair value measurement hierarchy levels at the end of the reporting period in which the event or change in circumstances that caused the transfer occurred. There were no transfers between hierarchy levels for the six months ended June 30, 2021. Valuation Techniques The fair value of financial instruments that are not traded in an active market (for example, over-the-counter Specific valuation techniques used to value financial instruments include: ● Quoted market prices or dealer quotes for similar instruments; ● The fair value of cross-currency interest rate swaps are calculated as the present value of the estimated future cash flows based on observable yield curves; ● The fair value of other receivables considers estimated future cash flows, current market interest rates and non-performance ● The fair value of contingent consideration is calculated based on estimates of future revenue performance. Valuation of the Refinitiv Warrants at December 31, 2020 ● On August 1, 2019, the Company and private equity funds affiliated with Blackstone agreed to sell Refinitiv, in which the Company owned a 45% interest, to LSEG, in an all share transaction which closed on January 29, 2021 (see note 8). Under the terms of the warrant agreement, the transaction constituted a change in control whereby the exercise of the warrants in connection with the closing of the transaction entitled the Company to an additional 4.5 million shares of YPL. The value of the warrants at December 31, 2020 reflected the entry into a definitive agreement for the sale of the Refinitiv business on August 1, 2019. The closing of the transaction on January 29, 2021 was not considered an adjusting subsequent event, and therefore the value at December 31, 2020 was not adjusted to incorporate the closing of the transaction. As such, the value was primarily based on the number of incremental shares in YPL to which the Company was entitled upon closing and the share price of LSEG on December 31, 2020. The valuation also incorporated (on a weighted-average basis) other outcomes based on the likelihood (at the time) of the ● The Monte Carlo simulation approach, which was incorporated into the valuation of the Refinitiv warrants, generates values based on the random outcomes from a probability distribution. Key inputs under the Monte Carlo approach include d
Schedule of Changes in Refinitv Warrants Level 3 Fair Value Measurement	The following reflects the change in the fair value of the Refinitiv warrants, which are a level 3 in the fair value measurement hierarchy, for the six months ended June 30, 2021: Six months ended June 30, 2021 December 31, 2020 517 Gain recognized prior to the sale of Refinitiv to LSEG within other operating gains, net 9 Exercise of warrants on date of sale of Refinitiv to LSEG (see note 8) (526) June 30, 2021 -

Other Non-Current Assets (Table

Other Non-Current Assets (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Summary of Other Non-Current Assets	June 30, December 31, 2021 2020 Net defined benefit plan surpluses 170 128 Cash surrender value of life insurance policies 344 334 Deferred commissions 101 105 Other financial assets (see note 11) 243 198 Other non-current (1) 71 23 Total other non-current 929 788 (1) Includes a tax receivable from HM Revenue & Customs (“HMRC”) of $56

Payables, Accruals and Provis_2

Payables, Accruals and Provisions (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Schedule of Payables, Accruals and Provisions	June 30, December 31, 2021 2020 Trade payables 146 217 Accruals 701 761 Provisions 108 111 Other current liabilities 68 70 Total payables, accruals and provisions 1,023 1,159

Provisions and Other Non-Curr_2

Provisions and Other Non-Current Liabilities (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Summary of Provisions and Other Non-Current Liabilities	June 30, December 31, 2021 2020 Net defined benefit plan obligations 516 598 Other financial liabilities (see note 11) 192 224 Deferred compensation and employee incentives 105 111 Provisions 108 140 Other non-current 6 10 Total provisions and other non-current 927 1,083

Capital (Tables)

Capital (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Details of NCIB Share Repurchases	The Company did not repurchase any shares in the three months ended June 30, 2021 and 2020. Details of share repurchases under the NCIB for the six months ended June 30, 2021 and 2020 were as follows: Six months ended June 30, 2021 2020 Share repurchases (millions of U.S. dollars) 200 200 Shares repurchased (number in millions) 2.5 2.6 Share repurchases - average price per share in U.S. dollars $ 81.45 $ 78.37
Summary of dividend declared and paid	Details of dividends declared per common share and dividends paid on common shares are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Dividends declared per common share $0.405 $0.380 $0.810 $0.760 Dividends declared 200 188 400 376 Dividends reinvested (6) (6) (12) (12) Dividends paid 194 182 388 364

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Details of Other in the Consolidated Statement of Cash Flow	Details of “Other” in the consolidated statement of cash flow are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Non-cash 39 44 78 84 Net (gains) losses on foreign exchange and derivative (3) 13 3 (33) Net (gains) losses on disposals of businesses and investments (8) (2) (8) 1 Revaluation of Refinitiv warrants (see note 11) - (54) (9) (1) Fair value adjustments 6 3 2 (20) Other (1) (21) (3) (37) 33 (17) 63 (6)
Details of Changes in Working Capital and Other Items	Details of “Changes in working capital and other items” are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Trade and other receivables 8 30 102 65 Prepaid expenses and other current assets 15 18 (1) (8) Other financial assets 1 2 18 41 Payables, accruals and provisions (46) (40) (175) (275) Deferred revenue 89 (21) 57 (54) Other financial liabilities - (2) (18) (41) Income taxes (1) (24) 23 860 62 Other (28) (17) (43) (40) 15 (7) 800 (250) (1) The six months ended June 30, 2021 reflects working capital associated with current tax liabilities on the LSEG transaction and subsequent sale of LSEG shares (see note 8).
Details of Income Taxes Paid	Details of income taxes paid are as follows: Three months ended June 30, Six months ended June 30, 2021 2020 2021 2020 Operating activities - continuing operations (65) (25) (101) (36) Operating activities - discontinued operations - 7 (2) 2 Investing activities - continuing operations (438) - (444) - Investing activities - discontinued operations (1) - - (42) - Total income taxes paid (503) (18) (589) (34) (1) Reflects payments made to HMRC (see note 18).

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2021
Text block [abstract]
Summary of Acquisition Activity	The Company did not acquire any businesses in the six months ended June 30, 2021 and acquired one business in the six months ended June 30, 2020. The related total consideration was as follows: Six months ended June 30, Total consideration 2021 2020 Business acquired - 121 Less: Cash acquired - (1) Business acquired, net of cash - 120 Contingent consideration payments 3 2 3 122
Summary of Brief Description of the Acquisition	The following provides a brief description of the acquisition completed during the six months ended June 30, 2020: Date Company Acquiring Segment Description March 2020 Pondera Solutions Legal Professionals A provider of technology and advanced analytics to combat fraud, waste and abuse in healthcare and large government programs.
Summary of Net Assets Acquired	The details of net assets acquired were as follows: Six months ended June 30, 2020 Cash and cash equivalents 1 Trade receivables 3 Current assets 4 Computer software 16 Other identifiable intangible assets 6 Total assets 26 Payables and accruals (2) Deferred revenue (1) Other financial liabilities (2) Current liabilities (5) Provisions and other non-current (1) Deferred tax (3) Total liabilities (9) Net assets acquired 17 Goodwill 104 Total 121

Business Description and Basi_3

Business Description and Basis of Preparation - Additional Information (Details)	1 Months Ended
	Feb. 28, 2021
Business Description and Basis of Preparation [Line Items]
Change Program Transition Key Priorities Description	transition from a holding company to an operating company, and from a content provider to a content-driven technology company.
Change Program [Member]
Business Description and Basis of Preparation [Line Items]
Change Program Completetion Period	2 years

Revenues - Summary of Revenues

Revenues - Summary of Revenues by Type (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	$ 1,532	$ 1,405	$ 3,112	$ 2,925
Recurring [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	1,220	1,139	2,440	2,307
Transactions [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	166	133	383	331
Global Print [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	147	134	290	289
Eliminations [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	(1)	(1)	(1)	(2)
Legal Professionals [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	673	620	1,341	1,246
Legal Professionals [member] | Recurring [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	626	580	1,247	1,167
Legal Professionals [member] | Transactions [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	47	40	94	79
Legal Professionals [member] | Global Print [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0		0
Legal Professionals [member] | Eliminations [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Corporates [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	348	329	732	696
Corporates [member] | Recurring [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	300	282	595	563
Corporates [member] | Transactions [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	48	47	137	133
Corporates [member] | Global Print [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0		0
Corporates [member] | Eliminations [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Tax & Accounting Professionals [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	197	168	422	386
Tax & Accounting Professionals [member] | Recurring [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	150	136	310	294
Tax & Accounting Professionals [member] | Transactions [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	47	32	112	92
Tax & Accounting Professionals [member] | Global Print [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Tax & Accounting Professionals [member] | Eliminations [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Reuters News [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	168	155	328	310
Reuters News [member] | Recurring [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	144	141	288	283
Reuters News [member] | Transactions [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	24	14	40	27
Reuters News [member] | Global Print [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Reuters News [member] | Eliminations [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Global Print [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	147	134	290	289
Global Print [member] | Recurring [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Global Print [member] | Transactions [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	0	0	0	0
Global Print [member] | Global Print [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	147	134	290	289
Global Print [member] | Eliminations [member] | Operating segments [member]
Disclosure of disaggregation of revenue from contracts with customers [line items]
Revenue	$ 0	$ 0	$ 0	$ 0

Revenues - Summary of geographi

Revenues - Summary of geographical information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure of geographical areas [line items]
Revenue	$ 1,532	$ 1,405	$ 3,112	$ 2,925
U.S. [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	1,095	1,104	2,281	2,316
Canada [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	49	40	95	82
Other [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	47	42	91	85
Americas [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	1,191	1,186	2,467	2,483
U.K. [Member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	215	104	388	210
Other Countries [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	60	54	120	109
EMEA [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	275	158	508	319
Asia Pacific [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	67	62	138	125
Eliminations [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	(1)	(1)	(1)	(2)
Legal Professionals [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	673	620	1,341	1,246
Legal Professionals [member] | U.S. [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	532	499	1,058	1,002
Legal Professionals [member] | Canada [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	15	13	31	26
Legal Professionals [member] | Other [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	6	7	11	11
Legal Professionals [member] | Americas [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	553	519	1,100	1,039
Legal Professionals [member] | U.K. [Member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	69	58	137	117
Legal Professionals [member] | Other Countries [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	17	13	34	29
Legal Professionals [member] | EMEA [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	86	71	171	146
Legal Professionals [member] | Asia Pacific [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	34	30	70	61
Legal Professionals [member] | Eliminations [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	0		0
Corporates [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	348	329	732	696
Corporates [member] | U.S. [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	287	270	610	578
Corporates [member] | Canada [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	3	2	5	5
Corporates [member] | Other [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	11	11	23	23
Corporates [member] | Americas [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	301	283	638	606
Corporates [member] | U.K. [Member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	27	28	53	55
Corporates [member] | Other Countries [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	11	10	23	19
Corporates [member] | EMEA [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	38	38	76	74
Corporates [member] | Asia Pacific [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	9	8	18	16
Corporates [member] | Eliminations [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	0		0
Tax & Accounting Professionals [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	197	168	422	386
Tax & Accounting Professionals [member] | U.S. [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	151	131	338	313
Tax & Accounting Professionals [member] | Canada [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	11	8	21	17
Tax & Accounting Professionals [member] | Other [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	23	17	44	38
Tax & Accounting Professionals [member] | Americas [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	185	156	403	368
Tax & Accounting Professionals [member] | U.K. [Member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	7	6	11	10
Tax & Accounting Professionals [member] | Other Countries [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	0	2	0	2
Tax & Accounting Professionals [member] | EMEA [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	7	8	11	12
Tax & Accounting Professionals [member] | Asia Pacific [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	5	4	8	6
Tax & Accounting Professionals [member] | Eliminations [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	0		0
Reuters News [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	168	155	328	310
Reuters News [member] | U.S. [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	21	107	70	211
Reuters News [member] | Canada [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	1	1	2	2
Reuters News [member] | Other [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	2	3	4	5
Reuters News [member] | Americas [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	24	111	76	218
Reuters News [member] | U.K. [Member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	103	5	169	12
Reuters News [member] | Other Countries [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	28	25	55	52
Reuters News [member] | EMEA [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	131	30	224	64
Reuters News [member] | Asia Pacific [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	13	14	28	28
Reuters News [member] | Eliminations [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	0		0
Global Print [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	147	134	290	289
Global Print [member] | U.S. [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	104	97	205	212
Global Print [member] | Canada [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	19	16	36	32
Global Print [member] | Other [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	5	4	9	8
Global Print [member] | Americas [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	128	117	250	252
Global Print [member] | U.K. [Member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	9	7	18	16
Global Print [member] | Other Countries [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	4	4	8	7
Global Print [member] | EMEA [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	13	11	26	23
Global Print [member] | Asia Pacific [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	6	$ 6	14	$ 14
Global Print [member] | Eliminations [member] | Operating segments [member]
Disclosure of geographical areas [line items]
Revenue	$ 0		$ 0

Segment Information - Summary o

Segment Information - Summary of Operating Results of Reportable Segments (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure of operating segments [Line Items]
Revenues	$ 1,532	$ 1,405	$ 3,112	$ 2,925
Adjusted EBITDA	502	479	1,060	959
Fair value adjustments (see note 5)	(6)	(3)	(2)	20
Depreciation	(42)	(43)	(88)	(83)
Other operating gains, net	14	80	31	48
Operating profit	316	365	703	655
Net interest expense	(49)	(52)	(100)	(97)
Other finance income (costs)	2	(13)	(4)	34
Share of post-tax earnings (losses) in equity method investments	1,092	(153)	7,389	(207)
Tax expense	(289)	(16)	(1,883)	(63)
Earnings from continuing operations	1,072	131	6,105	322
Operating segments [member] | Legal Professionals [member]
Disclosure of operating segments [Line Items]
Revenues	673	620	1,341	1,246
Adjusted EBITDA	285	254	564	484
Operating segments [member] | Corporates [member]
Disclosure of operating segments [Line Items]
Revenues	348	329	732	696
Adjusted EBITDA	130	118	276	235
Operating segments [member] | Tax & Accounting Professionals [member]
Disclosure of operating segments [Line Items]
Revenues	197	168	422	386
Adjusted EBITDA	72	54	170	138
Operating segments [member] | Reuters News [member]
Disclosure of operating segments [Line Items]
Revenues	168	155	328	310
Adjusted EBITDA	35	25	63	44
Operating segments [member] | Global Print [member]
Disclosure of operating segments [Line Items]
Revenues	147	134	290	289
Adjusted EBITDA	56	54	113	117
Operating segments [member] | Eliminations [member]
Disclosure of operating segments [Line Items]
Revenues	(1)	(1)	(1)	(2)
Operating segments [member] | Corporate costs [member]
Disclosure of operating segments [Line Items]
Adjusted EBITDA	(76)	(26)	(126)	(59)
Computer software [member]
Disclosure of operating segments [Line Items]
Amortization	(122)	(118)	(237)	(229)
Other identifiable intangible assets [member]
Disclosure of operating segments [Line Items]
Amortization	$ (30)	$ (30)	$ (61)	$ (60)

Operating Expenses - Components

Operating Expenses - Components of Operating Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating Expenses 1 [abstract]
Salaries, commissions and allowances	$ 608	$ 531	$ 1,192	$ 1,092
Share-based payments	16	18	34	35
Post-employment benefits	37	35	74	68
Total staff costs	661	584	1,300	1,195
Goods and services	279	252	567	582
Content	67	63	138	131
Telecommunications	11	14	23	26
Facilities	12	13	24	32
Fair value adjustments	6	3	2	(20)
Total operating expenses	$ 1,036	$ 929	$ 2,054	$ 1,946

Operating Expenses - Additional

Operating Expenses - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Operating Expenses 1 [abstract]
Change program transition costs	$ 41	$ 52

Other Operating Gains, Net - Ad

Other Operating Gains, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure of Other Operating Gains [Line Items]
Other operating (losses) gains, net	$ 14	$ 80	$ 31	$ 48
Revaluation of warrants		54	$ 9	1
Refinitiv warrants [member]
Disclosure of Other Operating Gains [Line Items]
Other operating (losses) gains, net		$ 80		$ 48

Finance Costs, Net - Components

Finance Costs, Net - Components of Finance Costs, Net, Include Interest Expense (Income) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest expense:
Debt	$ 40	$ 39	$ 80	$ 76
Derivative financial instruments — hedging activities	(1)	0	(2)	0
Other, net	5	5	12	8
Fair value gains on financial instruments:
Cash flow hedges, transfer from equity	(17)	(30)	(32)	(27)
Net foreign exchange losses on debt	17	30	32	27
Net interest expense — debt and other	44	44	90	84
Net interest expense — leases	2	3	4	5
Net interest expense — pension and other post-employment benefit plans	3	6	7	11
Interest income	0	(1)	(1)	(3)
Net interest expense	$ 49	$ 52	$ 100	$ 97

Finance Costs, Net - Componen_2

Finance Costs, Net - Components of Finance Costs, Net, Include Other Finance Costs (Income) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Material income and expense [abstract]
Net (gains) losses due to changes in foreign currency exchange rates	$ (2)	$ 21	$ 4	$ (15)
Net gains on derivative instruments	0	(8)	0	(19)
Other finance (income) costs	$ (2)	$ 13	$ 4	$ (34)

Equity Method Investments - Sha

Equity Method Investments - Share of Post-tax Earnings (Losses) in Equity Method Investments Reported in Consolidated Income Statement (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure of associates [line items]
Total share of post-tax earnings (losses) in equity method investments	$ 1,092	$ (153)	$ 7,389	$ (207)
YPL (formerly RHL) [member]
Disclosure of associates [line items]
Total share of post-tax earnings (losses) in equity method investments	1,090	(155)	7,385	(213)
Other equity method investments [member]
Disclosure of associates [line items]
Total share of post-tax earnings (losses) in equity method investments	$ 2	$ 2	$ 4	$ 6

Equity Method Investments - Add

Equity Method Investments - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	Mar. 19, 2021	Jan. 29, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disclosure of associates [line items]
Tax payment					$ 444
Total share of post-tax earnings (losses) in equity method investments			$ 1,092	$ (153)	7,389	$ (207)
LSEG [member]
Disclosure of associates [line items]
Mark-to-market of LSEG shares			$ 1,039		$ (573)
LSEG Shares [member]
Disclosure of associates [line items]
Number of shares received on the date of sale		82.5
Warrants [member]
Disclosure of associates [line items]
Number of warrants exercised		4.5
Three Non Executive LSEG Directors [member]
Disclosure of associates [line items]
Proportion of voting rights held in subsidiary					25.00%
Entitled number of directors to nominate					three
Two Non Executive LSEG Directors [member]
Disclosure of associates [line items]
Entitled number of directors to nominate					two
Two Non Executive LSEG Directors [member] | Bottom of range [member]
Disclosure of associates [line items]
Proportion of voting rights held in subsidiary					17.50%
Two Non Executive LSEG Directors [member] | Top of range [member]
Disclosure of associates [line items]
Proportion of voting rights held in subsidiary					25.00%
One Non Executive LSEG Directors [member]
Disclosure of associates [line items]
Entitled number of directors to nominate					one
One Non Executive LSEG Directors [member] | Bottom of range [member]
Disclosure of associates [line items]
Proportion of voting rights held in subsidiary					10.00%
One Non Executive LSEG Directors [member] | Top of range [member]
Disclosure of associates [line items]
Proportion of voting rights held in subsidiary					17.50%
York ownership interest in LSEG [member]
Disclosure of associates [line items]
Economic interest			30.00%		30.00%
Voting interest			24.00%		24.00%
Thomson Reuters Ownership of YPL [member]
Disclosure of associates [line items]
Number of shares held in associate			72.4		72.4
Dividends received from associates, classified as investing activities			$ 51		$ 51
Y P L formerly R H L Thomson Reuters Share [Member]
Disclosure of associates [line items]
Ownership interest					42.82%		45.00%
Dividend income from equity method investments			51		$ 51
Pre-tax proceeds from sale of shares					(1,145)
Total share of post-tax earnings (losses) in equity method investments			1,090	(155)	7,385	$ (213)
Y P L formerly R H L Thomson Reuters Share [Member] | LSEG [member]
Disclosure of associates [line items]
Dividend income from equity method investments			120	$ 0	120
Mark-to-market of LSEG shares			$ 2,427		(1,147)
Refinitiv [member]
Disclosure of associates [line items]
Post-tax losses related to Refinitiv					168
Sale of Refinitiv [member]
Disclosure of associates [line items]
Sale of Refinitiv to LSEG					$ 8,075
Current tax liabilities	$ 640	$ 640
Sale of LSEG shares [member]
Disclosure of associates [line items]
Current tax liabilities	225
Pre-tax proceeds from sale of shares	$ 994
Number of shares sold	10.1

Equity Method Investments - Sum

Equity Method Investments - Summary of Equity Method Investments Reported in Consolidated Statement of Financial Position (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Disclosure of associates [line items]
Total equity method investments	$ 7,913	$ 1,136
YPL (formerly RHL) [member]
Disclosure of associates [line items]
Total equity method investments	7,750	981
Other equity method investments [member]
Disclosure of associates [line items]
Total equity method investments	$ 163	$ 155

Equity Method Investments - S_2

Equity Method Investments - Summary of Financial Information for YPL (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Assets
Current assets	$ 3,885		$ 3,885		$ 3,975
Total assets	24,561		24,561		17,881
Revenues	1,532	$ 1,405	3,112	$ 2,925
Liabilities
Current liabilities	2,767		2,767		2,652
Total liabilities	8,784		8,784		7,901
Net earnings (loss)	1,068	126	6,104	319
Net earnings (loss) attributable to YPL (formerly RHL)	1,068	126	6,104	319
Total comprehensive income (loss) attributable to YPL (formerly RHL)	1,123	233	6,154	92
Thomson Reuters carrying amount	7,913		7,913		1,136
LSEG Mark-to-Market- Thomson Reuters Share [Member]
Liabilities
Mark-to-market of LSEG shares	1,039		(573)
YPL (formerly RHL) [member]
Assets
Current assets	7		7		2,071
Non-current assets	18,663		18,663		21,094
Total assets	18,670		18,670		23,165
Revenues	0	1,588	551	3,221
Liabilities
Current liabilities	7		7		3,995
Non-current liabilities	36		36		14,268
Total liabilities	43		43		18,263
Gain related to the sale of Refinitiv to LSEG	0		18,645
Dividend income	51		51
Net earnings (loss)	2,547	(326)	17,257	(419)
Net assets	18,627		18,627		4,902
Remove: Net earnings attributable to non-controlling interests	0	(18)	(11)	(54)
Non-controlling interests	0		0		(2,415)
Net assets attributable to YPL (formerly RHL), Beginning balance			2,487	3,278	3,278
Net earnings (loss) attributable to YPL (formerly RHL)	2,547	(344)	17,246	(473)	(1,232)
Other comprehensive (loss) income attributable to YPL (formerly RHL)	0	128	(214)	(111)	330
Other adjustments			253		111
Distribution to owner			(1,145)
Total comprehensive income (loss) attributable to YPL (formerly RHL)	2,547	(216)	17,032	(584)
Net assets attributable to YPL (formerly RHL), Ending balance	18,627		$ 18,627		$ 2,487
Thomson Reuters % share			42.82%		45.00%
Thomson Reuters $ share			$ 7,976		$ 1,119
Historical excluded equity adjustment	(226)		(226)		(138)
Thomson Reuters carrying amount	7,750		7,750		$ 981
YPL (formerly RHL) [member] | LSEG Mark-to-Market- Thomson Reuters Share [Member]
Liabilities
Mark-to-market of LSEG shares	2,427		(1,147)
Dividend income	120	0	120
Refinitiv net loss prior to its sale to LSEG	$ 0	$ (326)	$ (361)	$ (419)

Taxation - Additional Informati

Taxation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure Of Income Taxes [Line Items]
Tax benefit (expense)	$ 289	$ 16	$ 1,883	$ 63
Investments accounted for using equity method [member]
Disclosure Of Income Taxes [Line Items]
Tax benefit (expense)	$ 262		$ 1,800

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation of Earnings Used for Earnings per Share Calculations (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings per share [abstract]
Earnings attributable to common shareholders	$ 1,068	$ 126	$ 6,104	$ 319
Less: Dividends declared on preference shares	0	0	(1)	(1)
Earnings used in consolidated earnings per share	1,068	126	6,103	318
Less: Loss from discontinued operations, net of tax	4	5	1	3
Earnings used in earnings per share from continuing operations	$ 1,072	$ 131	$ 6,104	$ 321

Earnings Per Share - Weighted A

Earnings Per Share - Weighted Average Common Shares (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Weighted-average number of common shares outstanding	495,687,352	495,903,023	495,597,737	495,842,141
Weighted-average number of vested DSUs	410,886	414,092	418,730	418,929
Basic	496,098,238	496,317,115	496,016,467	496,261,070
Effect of stock options and TRSUs	1,160,834	1,263,224	1,093,324	1,318,061
Diluted	497,259,072	497,580,339	497,109,791	497,579,131

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	1 Months Ended		6 Months Ended	12 Months Ended
	May 31, 2020	Jan. 31, 2020	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Disclosure of detailed information about financial instruments [Line Items]
Restricted cash and cash equivalents			$ 68	$ 61
Maximum gross loan commitment upon request			2,400
Credit facility under the acquisition price			$ 3		$ 122
Net Proceeds Used For General Corporate Purposes	$ 999
YPL (formerly RHL) [member]
Disclosure of detailed information about financial instruments [Line Items]
Percentage of ownership held			42.82%	45.00%
The number of shares under warrant agreement				4.5
Note Repayments Before Maturity [Member]
Disclosure of detailed information about financial instruments [Line Items]
Debt repaid		$ 640
Commercial paper [member]
Disclosure of detailed information about financial instruments [Line Items]
Commercial paper programs			$ 1,800
Commercial papers issued		$ 630
Commercial paper borrowings outstanding			0	$ 0
Amended Credit Facility Maturities In December 2024 [Member]
Disclosure of detailed information about financial instruments [Line Items]
Gross loan commitments			$ 1,800
Maturity date			December 2024
Credit facility, rate of interest added to reference rate			1.125%
Aggregate amount borrowing from lenders			$ 600
Borrowings			0	$ 0
Credit facility under the acquisition price			$ 500
Repayments of non-current borrowings	$ 1,000
Ratio of net debt to ebitda under credit facility			0.6
Top of range [member] | Amended Credit Facility Maturities In December 2024 [Member]
Disclosure of detailed information about financial instruments [Line Items]
Required ratio of net debt to ebitda			4.5
Top of range [member] | Amended Credit Facility Maturities In December 2024 [Member] | Scenario Forecast one [Member]
Disclosure of detailed information about financial instruments [Line Items]
Required ratio of net debt to ebitda			5

Financial Instruments - Summary

Financial Instruments - Summary of Financial Assets and Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Disclosure of Financial Assets and Liabilities [Line Items]
Cash and cash equivalents	$ 2,342	$ 1,787	$ 946
Trade and other receivables	1,041	1,151
Other financial assets - current	77	612
Other financial assets - non-current	243	198
Trade payables	(146)	(217)
Accruals	(701)	(761)
Other financial liabilities - current	(158)	(376)
Long-term indebtedness	(3,806)	(3,772)
Other financial liabilities - non-current	(192)	(224)
Total	(1,300)	(1,602)
Assets liabilities at amortized cost [member]
Disclosure of Financial Assets and Liabilities [Line Items]
Cash and cash equivalents	352	311
Trade and other receivables	1,041	1,151
Other financial assets - current	77	95
Other financial assets - non-current	31	35
Trade payables	(146)	(217)
Accruals	(701)	(761)
Other financial liabilities - current	(156)	(374)
Long-term indebtedness	(3,806)	(3,772)
Other financial liabilities - non-current	(192)	(223)
Total	(3,500)	(3,755)
Assets/ (liabilities) at fair value through earnings [member]
Disclosure of Financial Assets and Liabilities [Line Items]
Cash and cash equivalents	1,990	1,476
Trade and other receivables	0
Other financial assets - current	0	517
Other financial assets - non-current	37	17
Trade payables	0
Accruals	0
Other financial liabilities - current	(2)	(2)
Long-term indebtedness	0
Other financial liabilities - non-current	0	(1)
Total	2,025	2,007
Assets at Fair Value through Other Comprehensive Income [member]
Disclosure of Financial Assets and Liabilities [Line Items]
Cash and cash equivalents	0
Trade and other receivables	0
Other financial assets - current	0
Other financial assets - non-current	50	46
Trade payables	0
Accruals	0
Other financial liabilities - current	0
Long-term indebtedness	0
Other financial liabilities - non-current	0
Total	50	46
Derivatives used for hedging [member]
Disclosure of Financial Assets and Liabilities [Line Items]
Cash and cash equivalents	0
Trade and other receivables	0
Other financial assets - current	0
Other financial assets - non-current	125	100
Trade payables	0
Accruals	0
Other financial liabilities - current	0
Long-term indebtedness	0
Other financial liabilities - non-current	0
Total	$ 125	$ 100

Financial Instruments - Summa_2

Financial Instruments - Summary of Financial Assets and Liabilities (Parenthetical) (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Disclosure Of Share Capital [Line Items]
Other financial liabilities	$ 158	$ 376
Current lease liabilities	79	83
Non-current lease liabilities	$ 192	223
Share Repurchase Program [Member]
Disclosure Of Share Capital [Line Items]
Other financial liabilities		$ 200

Financial Instruments - Summa_3

Financial Instruments - Summary of Debt and Related Derivative Instruments (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	$ (125)	$ (100)
Long-term portion	3,806	3,772
Derivative instrument Asset, Long-term portion	(125)	(100)
At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	(125)	(100)
2.239% Notes, due 2025 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	(125)	(100)
2.239% Notes, due 2025 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	(125)	(100)
4.30% notes, due 2023 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
4.30% notes, due 2023 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
3.85% Notes, Due 2024 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
3.85% Notes, Due 2024 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
3.35% notes, due 2026 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
3.35% notes, due 2026 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
4.50% Notes, Due 2043 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
4.50% Notes, Due 2043 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
5.65% notes, due 2043 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
5.65% notes, due 2043 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
5.50% debentures, due 2035 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
5.50% debentures, due 2035 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
5.85% debentures, due 2040 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
5.85% debentures, due 2040 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Derivative Instruments (Asset)	0
Primary debt instruments [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	3,806	3,772
Long-term portion	3,806	3,772
Primary debt instruments [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	4,431	4,459
Primary debt instruments [member] | 2.239% Notes, due 2025 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	1,124	1,093
Primary debt instruments [member] | 2.239% Notes, due 2025 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	1,160	1,151
Primary debt instruments [member] | 4.30% notes, due 2023 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	598	597
Primary debt instruments [member] | 4.30% notes, due 2023 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	646	657
Primary debt instruments [member] | 3.85% Notes, Due 2024 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	241	241
Primary debt instruments [member] | 3.85% Notes, Due 2024 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	262	266
Primary debt instruments [member] | 3.35% notes, due 2026 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	497	497
Primary debt instruments [member] | 3.35% notes, due 2026 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	543	557
Primary debt instruments [member] | 4.50% Notes, Due 2043 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	116	116
Primary debt instruments [member] | 4.50% Notes, Due 2043 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	133	130
Primary debt instruments [member] | 5.65% notes, due 2043 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	342	342
Primary debt instruments [member] | 5.65% notes, due 2043 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	470	471
Primary debt instruments [member] | 5.50% debentures, due 2035 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	396	395
Primary debt instruments [member] | 5.50% debentures, due 2035 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	528	531
Primary debt instruments [member] | 5.85% debentures, due 2040 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	492	491
Primary debt instruments [member] | 5.85% debentures, due 2040 [member] | At fair value [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Borrowings	$ 689	$ 696

Financial Instruments - Summa_4

Financial Instruments - Summary of Debt and Related Derivative Instruments (Parenthetical) (Detail) $ in Millions, $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021CAD ($)	Dec. 31, 2020CAD ($)	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
2.239% Notes, due 2025 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount	$ 1,400	$ 1,400
Debt instrument, interest rate	2.239%	2.239%	2.239%	2.239%
Debt instrument, maturity year	2025	2025
Debt instrument, original currency	CAD	CAD
4.30% notes, due 2023 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount			$ 600	$ 600
Debt instrument, interest rate	4.30%	4.30%	4.30%	4.30%
Debt instrument, maturity year	2023	2023
Debt instrument, original currency	USD	USD
3.85% Notes, Due 2024 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount			$ 450	$ 450
Debt instrument, interest rate	3.85%	3.85%	3.85%	3.85%
Debt instrument, maturity year	2024	2024
Debt instrument, original currency	USD	USD
3.35% notes, due 2026 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount			$ 500	$ 500
Debt instrument, interest rate	3.35%	3.35%	3.35%	3.35%
Debt instrument, maturity year	2026	2026
Debt instrument, original currency	USD	USD
4.50% Notes, Due 2043 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount			$ 350	$ 350
Debt instrument, interest rate	4.50%	4.50%	4.50%	4.50%
Debt instrument, maturity year	2043	2043
Debt instrument, original currency	USD	USD
5.65% notes, due 2043 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount			$ 350	$ 350
Debt instrument, interest rate	5.65%	5.65%	5.65%	5.65%
Debt instrument, maturity year	2043	2043
Debt instrument, original currency	USD	USD
5.50% debentures, due 2035 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount			$ 400	$ 400
Debt instrument, interest rate	5.50%	5.50%	5.50%	5.50%
Debt instrument, maturity year	2035	2035
Debt instrument, original currency	USD	USD
5.85% debentures, due 2040 [member]
Disclosure of Summary of Debt and Related Derivative Instruments [Line Items]
Debt instrument, principal amount			$ 500	$ 500
Debt instrument, interest rate	5.85%	5.85%	5.85%	5.85%
Debt instrument, maturity year	2040	2040
Debt instrument, original currency	USD	USD

Financial Instruments - Summa_5

Financial Instruments - Summary of Information Regarding Notes Repaid (Detail) $ in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2020CAD ($)	Jun. 30, 2020USD ($)
Redemption of notes [member] | 3.309% Notes, Due 2021 [member]
Disclosure of detailed information about borrowings [Line Items]
Debt instrument, maturity year	2021
Notes, repaid date	January 2020
Debt instrument, interest rate	3.309%	3.309%
Debt instrument, principal amount	$ 550
Redemption of notes [member] | 3.95% Notes, due 2021 [member]
Disclosure of detailed information about borrowings [Line Items]
Debt instrument, maturity year	2021
Notes, repaid date	January 2020
Debt instrument, interest rate	3.95%	3.95%
Debt instrument, principal amount		$ 139
Transaction notes issued [Member] | 2.239% Notes, Due 2025 [member]
Disclosure of detailed information about borrowings [Line Items]
Debt instrument, maturity year	2025
Notes issued for transaction	May 2020
Debt instrument, interest rate	2.239%	2.239%
Debt instrument, principal amount	$ 1,400

Financial Instruments - Summa_6

Financial Instruments - Summary of Fair Value Measurements Carried at Fair Value in the Consolidated Statement of Financial Position (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Assets
Money market accounts	$ 1,990	$ 1,476
Warrants		517
Other receivables	37	17
Derivatives used for hedging	125	100
Financial assets at fair value through earnings	2,027	2,010
Financial assets at fair value through other comprehensive income	50	46
Total assets	2,202	2,156
Liabilities
Contingent consideration	(2)	(3)
Financial liabilities at fair value through earnings	(2)	(3)
Total liabilities	(2)	(3)
Level 1 [member]
Assets
Money market accounts	0
Other receivables	0
Derivatives used for hedging	0
Financial assets at fair value through earnings	0
Financial assets at fair value through other comprehensive income	28	27
Total assets	28	27
Liabilities
Contingent consideration	0
Financial liabilities at fair value through earnings	0
Total liabilities	0
Level 2 [member]
Assets
Money market accounts	1,990	1,476
Other receivables	0
Derivatives used for hedging	125	100
Financial assets at fair value through earnings	1,990	1,476
Financial assets at fair value through other comprehensive income	22	19
Total assets	2,137	1,595
Liabilities
Contingent consideration	0
Financial liabilities at fair value through earnings	0
Total liabilities	0
Level 3 [member]
Assets
Money market accounts	0
Warrants		517
Other receivables	37	17
Derivatives used for hedging	0
Financial assets at fair value through earnings	37	534
Financial assets at fair value through other comprehensive income	0
Total assets	37	534
Liabilities
Contingent consideration	(2)	(3)
Financial liabilities at fair value through earnings	(2)	(3)
Total liabilities	$ (2)	$ (3)

Financial Instruments - Schedul

Financial Instruments - Schedule of Changes in Refinitv Warrants Level 3 Fair Value Measurement (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2021USD ($)
Disclosure of fair value measurement of assets [line items]
Beginning Balance	$ 517
Level 3 [member]
Disclosure of fair value measurement of assets [line items]
Beginning Balance	517
Level 3 [member] | Warrants [member]
Disclosure of fair value measurement of assets [line items]
Beginning Balance	517
Gain recognized within other operating gains, net	9
Exercise of warrants on date of sale of Refinitiv to LSEG	(526)
Ending Balance	$ 0

Other Non-Current Assets - Summ

Other Non-Current Assets - Summary of Other Non-Current Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Other Noncurrent Assets [abstract]
Net defined benefit plan surpluses	$ 170	$ 128
Cash surrender value of life insurance policies	344	334
Deferred commissions	101	105
Other financial assets	243	198
Other non-current assets	71	23
Total other non-current assets	$ 929	$ 788

Other Non-Current Assets - Su_2

Other Non-Current Assets - Summary of Other Non-Current Assets (Parenthetical) (Detail) $ in Millions	Jun. 30, 2021USD ($)
HM Revenue And Customs [Member]
Disclosure Of Other Non-current Assets Table [line items]
Tax receivable	$ 56

Payables, Accruals and Provis_3

Payables, Accruals and Provisions - Schedule of Payables, Accruals and Provisions (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Disclosure Of Payables Accruals And Provisions [abstract]
Trade payables	$ 146	$ 217
Accruals	701	761
Provisions	108	111
Other current liabilities	68	70
Total payables, accruals and provisions	$ 1,023	$ 1,159

Provisions and Other Non-Curr_3

Provisions and Other Non-Current Liabilities - Summary of Provisions and Other Non-Current Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Disclosure of other provisions [abstract]
Net defined benefit plan obligations	$ 516	$ 598
Other financial liabilities	192	224
Deferred compensation and employee incentives	105	111
Provisions	108	140
Other non-current liabilities	6	10
Total provisions and other non-current liabilities	$ 927	$ 1,083

Capital - Summary of Dividend D

Capital - Summary of Dividend Declared and Paid (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure Of Dividends Declared And Paid [Abstract]
Dividends declared per common share	$ 0.405	$ 0.380	$ 0.810	$ 0.760
Dividends declared	$ 200	$ 188	$ 400	$ 376
Dividends reinvested	(6)	(6)	(12)	(12)
Dividends paid	$ 194	$ 182	$ 388	$ 364

Capital - Details of Share Repu

Capital - Details of Share Repurchases (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure of share repurchases [abstract]
Share repurchases	$ 0	$ 0	$ 200	$ 200
Shares repurchased			2.5	2.6
Share repurchases - average price per share in U.S. dollars			$ 81.45	$ 78.37

Capital - Additional Informatio

Capital - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	1 Months Ended	6 Months Ended	12 Months Ended
	Feb. 28, 2021	Jun. 30, 2021	Dec. 31, 2020	Aug. 31, 2021	Aug. 05, 2021
Disclosure Of Share Capital [Line Items]
Other financial liabilities		$ 158	$ 376
Pre-defined share repurchase program with broker [member]
Disclosure Of Share Capital [Line Items]
Other financial liabilities			$ 200
NCIB [member] | NCIB Amendment [Member]
Disclosure Of Share Capital [Line Items]
Potential repurchase of common shares		20	5
Increase in shares under amended NCIB		15
NCIB [member] | August 2021 New Share Repurchase Program [Member] | Potential Share Repurchase [Member]
Disclosure Of Share Capital [Line Items]
Share repurchases amount authorized for buy back				$ 1,200	$ 1,200
NCIB [member] | February 2021 Share Buy Back Program [Member]
Disclosure Of Share Capital [Line Items]
Repurchase of common share	$ 200

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information - Details of Other in the Consolidated Statement of Cash Flow (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure Of Other In Consolidated Statement Of Cash Flow [abstract]
Non-cash employee benefit charges	$ 39	$ 44	$ 78	$ 84
Net (gains) losses on foreign exchange and derivative financial instruments	(3)	13	3	(33)
Net (gains) losses on disposals of businesses and investments	(8)	(2)	(8)	1
Revaluation of Refinitiv warrants (see note 11)	0	(54)	(9)	(1)
Fair value adjustments	6	3	2	(20)
Other	(1)	(21)	(3)	(37)
Total	$ 33	$ (17)	$ 63	$ (6)

Supplemental Cash Flow Inform_4

Supplemental Cash Flow Information - Details of Changes in Working Capital and Other Items (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure Of Changes In Working Capital And Other Items [abstract]
Trade and other receivables	$ 8	$ 30	$ 102	$ 65
Prepaid expenses and other current assets	15	18	(1)	(8)
Other financial assets	1	2	18	41
Payables, accruals and provisions	(46)	(40)	(175)	(275)
Deferred revenue	89	(21)	57	(54)
Other financial liabilities	0	(2)	(18)	(41)
Income taxes	(24)	23	860	62
Other	(28)	(17)	(43)	(40)
Total	$ 15	$ (7)	$ 800	$ (250)

Supplemental Cash Flow Inform_5

Supplemental Cash Flow Information - Details of Income Taxes Paid (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure Of Income Taxes [Line Items]
Operating activities	$ (65)	$ (25)	$ (101)	$ (36)
Taxes paid on sale of Refinitiv and LSEG shares	(438)	0	(444)	0
Investing activities – discontinued operations	(438)	0	(444)	0
Total income taxes paid	(503)	(18)	(589)	(34)
Discontinued Operations [member]
Disclosure Of Income Taxes [Line Items]
Operating activities	0	7	(2)	2
Taxes paid on sale of Refinitiv and LSEG shares	0	0	(42)	0
Investing activities – discontinued operations	$ 0	$ 0	$ (42)	$ 0

Acquisitions - Summary of Acqui

Acquisitions - Summary of Acquisition Activity (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Disclosure of detailed information about business combination [abstract]
Businesses acquired	$ 0	$ 121
Less: Cash acquired	0	(1)
Businesses acquired, net of cash	0	120
Contingent consideration payments	3	2
Total	$ 3	$ 122

Acquisitions - Summary of Acq_2

Acquisitions - Summary of Acquisition Activity (Parenthetical) (Detail) - Business	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Disclosure of detailed information about business combination [Line Items]
Number of business acquired	0	1

Acquisitions - Summary of Brief

Acquisitions - Summary of Brief Description of the Acquisition (Detail) - Pondera Solutions [Member]	6 Months Ended
	Jun. 30, 2021
Description Of Acquisitions Completed [Line Items]
Date of acquisition	March 2020
Name of acquiree	Pondera Solutions
Description of the acquiring segment	Legal Professionals
Description of acquiree	A provider of technology and advanced analytics to combat fraud, waste and abuse in healthcare and large government programs.

Acquisitions - Summary of Net A

Acquisitions - Summary of Net Assets Acquired (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 30, 2020
Disclosure of detailed information about business combination [Line Items]
Cash and cash equivalents	$ 0	$ 1
Business combinations [member]
Disclosure of detailed information about business combination [Line Items]
Cash and cash equivalents		1
Trade receivables		3
Current assets		4
Total assets		26
Payables and accruals		(2)
Deferred revenue		(1)
Other financial liabilities		(2)
Current liabilities		(5)
Provisions and other non-current liabilities		(1)
Deferred tax		(3)
Total liabilities		(9)
Net assets acquired		17
Goodwill		104
Total		121
Business combinations [member] | Computer software [member]
Disclosure of detailed information about business combination [Line Items]
Identifiable intangible assets		16
Business combinations [member] | Other identifiable intangible assets [member]
Disclosure of detailed information about business combination [Line Items]
Identifiable intangible assets		$ 6

Contingencies - Additional Info

Contingencies - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	Mar. 31, 2021	Jul. 31, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disclosure of Diverted Profits Tax paid or payable [Line Items]
Diverted Profits Tax paid			$ 503	$ 18	$ 589	$ 34
Diverted profits tax			663		$ 663		$ 251
Bottom of range [member]
Disclosure of Diverted Profits Tax paid or payable [Line Items]
Notice period to be issued by tax authorities					6 months
Tax Year 2015
Disclosure of Diverted Profits Tax paid or payable [Line Items]
Diverted Profits Tax paid		$ 31
Tax Year 2016
Disclosure of Diverted Profits Tax paid or payable [Line Items]
Diverted Profits Tax paid	$ 87
Tax Year 2018
Disclosure of Diverted Profits Tax paid or payable [Line Items]
Diverted profits tax			266		$ 266
Another Tax Year
Disclosure of Diverted Profits Tax paid or payable [Line Items]
Diverted profits tax			$ 80		$ 80

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	Mar. 19, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disclosure of transactions between related parties [Line Items]
Dividend from sale of LSEG shares		$ 0	$ 0	$ 994	$ 0
Dividends received from YPL		$ 0	$ 0	994	$ 0
YPL (formerly RHL) [member]
Disclosure of transactions between related parties [Line Items]
Dividend from sale of LSEG shares	$ 994			51
Dividends received from YPL	$ 994			$ 51
Woodbridge [member]
Disclosure of transactions between related parties [Line Items]
Beneficial ownership of shares				66.00%

Subsequent Events - Additional

Subsequent Events - Additional information (Detail) - USD ($) $ in Billions	Aug. 31, 2021	Aug. 05, 2021
Potential Share Repurchase [Member] | NCIB [member] | August 2021 New Share Repurchase Program [Member]
Disclosure of non-adjusting events after reporting period [Line Items]
Share repurchases amount authorized for buy back	$ 1.2	$ 1.2