TELUS International (TIXT) 20-F 9 Feb 24 2023 FY Annual report (foreign) Financial data

Cover Page

Cover Page - shares	12 Months Ended
	Dec. 31, 2023	Feb. 09, 2024
Document Information [Line Items]
Document Type	20-F
Document Registration Statement	false
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Entity File Number	001-39968
Entity Registrant Name	TELUS International (Cda) Inc.
Entity Incorporation, State or Country Code	A1
Entity Address, Address Line Two	Floor 7
Entity Address, Address Line One	510 West Georgia Street
Entity Address, City or Town	Vancouver
Entity Address, State or Province	BC
Entity Address, Postal Zip Code	V6B 0M3
Entity Address, Country	CA
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Document Accounting Standard	International Financial Reporting Standards
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		106,830,312
Entity Central Index Key	0001825155
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
New York Stock Exchange
Document Information [Line Items]
Title of 12(b) Security	Subordinate voting share, no par value
Trading Symbol	TIXT
Security Exchange Name	NYSE
Business Contact
Document Information [Line Items]
Entity Address, Address Line Two	Floor 7
Entity Address, Address Line One	510 West Georgia Street
Entity Address, City or Town	Vancouver
Entity Address, State or Province	BC
Entity Address, Postal Zip Code	V6B 0M3
Contact Personnel Name	Michel Belec
City Area Code	604
Local Phone Number	695-6400

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Auditor Information [Abstract]
Auditor Name	Deloitte LLP
Auditor Location	Toronto, Canada
Auditor Firm ID	1208

Consolidated Statements of Inco

Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of comprehensive income [abstract]
REVENUE	$ 2,708	$ 2,468	$ 2,194
OPERATING EXPENSES
Salaries and benefits	1,664	1,393	1,222
Goods and services purchased	461	468	432
Share-based compensation	21	25	75
Acquisition, integration and other	55	40	23
Depreciation	141	124	115
Amortization of intangible assets	183	134	142
Total	2,525	2,184	2,009
OPERATING INCOME	183	284	185
OTHER (INCOME) EXPENSES
Changes in business combination-related provisions	(20)	0	0
Interest expense	144	41	44
Foreign exchange gain	0	(7)	(1)
INCOME BEFORE INCOME TAXES	59	250	142
Income tax expense	5	67	64
NET INCOME	54	183	78
Items that may subsequently be reclassified to income
Change in unrealized fair value of derivatives designated as cash flow hedges	(27)	43	40
Exchange differences arising from translation of foreign operations	26	(89)	(95)
Total items that may subsequently be reclassified to income	(1)	(46)	(55)
Item that will not be subsequently reclassified to income
Employee defined benefit plan re-measurements	1	3	0
Total items never subsequently reclassified to income	0	(43)	(55)
COMPREHENSIVE INCOME	$ 54	$ 140	$ 23
EARNINGS PER SHARE
Basic earnings per share (in dollars per share)	$ 0.20	$ 0.69	$ 0.30
Diluted earnings per share (in dollars per share)	$ 0.18	$ 0.68	$ 0.29
TOTAL WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	274	266	264
Diluted (in shares)	286	270	267

Consolidated Statements of Fina

Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 127	$ 125
Accounts receivable	498	428
Due from affiliated companies	62	81
Income and other taxes receivable	5	7
Prepaid and other assets	35	35
Current portion of derivative assets	16	19
Total	743	695
Non-current assets
Property, plant and equipment, net	517	449
Intangible assets, net	1,546	1,008
Goodwill	1,963	1,350
Derivative assets	0	13
Deferred income taxes	29	14
Other long-term assets	25	27
Total	4,080	2,861
Total assets	4,823	3,556
Current liabilities
Accounts payable and accrued liabilities	290	289
Due to affiliated companies	178	111
Income and other taxes payable	57	67
Current portion of provisions	2	1
Current maturities of long-term debt	122	83
Current portion of derivative liabilities	0	1
Total	649	552
Non-current liabilities
Provisions	191	2
Long-term debt	1,628	881
Derivative liabilities	12	0
Deferred income taxes	290	264
Other long-term liabilities	16	19
Total	2,137	1,166
Total liabilities	2,786	1,718
Owners’ equity	2,037	1,838
Total liabilities and owners’ equity	4,823	3,556
Contingent liabilities

Consolidated Statements of Chan

Consolidated Statements of Changes in Owners' Equity - USD ($) shares in Millions, $ in Millions	Total	Share capital	Contributed surplus	Retained earnings (deficit)	Accumulated other comprehensive income (loss)
Beginning balance (in shares) at Dec. 31, 2020		245
Beginning balance at Dec. 31, 2020	$ 1,111	$ 989	$ 0	$ 33	$ 89
Changes In Owners' Equity [Roll Forward]
Net income	78			78
Other comprehensive loss	(55)				(55)
Number of shares issued in public offering (in shares)		21
Subordinate Voting Shares issued in public offering	525	$ 525
Share issue related cost	(25)	(25)
Share-based compensation	21	$ 1	24	(4)
Ending balance (in shares) at Dec. 31, 2021		266
Ending balance at Dec. 31, 2021	1,655	$ 1,490	24	107	34
Changes In Owners' Equity [Roll Forward]
Net income	183			183
Other comprehensive loss	(43)			3	(46)
Share-based compensation	33	$ 13	21	(1)
Common shares issued	10		10
Share-based compensation (in shares)		1
Ending balance (in shares) at Dec. 31, 2022		267
Ending balance at Dec. 31, 2022	1,838	$ 1,503	55	292	(12)
Changes In Owners' Equity [Roll Forward]
Net income	54			54
Other comprehensive loss	0			1	(1)
Share-based compensation	20	20
Common shares issued	125	$ 125
Carrying value of business acquired less fair value of consideration paid (in shares)		6
Share-based compensation (in shares)		1
Ending balance (in shares) at Dec. 31, 2023		274
Ending balance at Dec. 31, 2023	$ 2,037	$ 1,648	$ 55	$ 347	$ (13)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
OPERATING ACTIVITIES
Net income	$ 54	$ 183	$ 78
Adjustments:
Depreciation and amortization	324	258	257
Interest expense	144	41	44
Income tax expense	5	67	64
Share-based compensation	21	25	75
Changes in business combination-related provisions	(20)	0	0
Change in market value of derivatives and other	2	2	0
Net change in non-cash operating working capital	43	(26)	(69)
Share-based compensation payments	(2)	(19)	(45)
Income taxes paid, net	(73)	(94)	(93)
Cash provided by operating activities	498	437	311
INVESTING ACTIVITIES
Cash payments for capital assets	(89)	(105)	(99)
Cash payments for other assets	0	(13)	0
Cash payments for acquisitions, net of cash acquired	(852)	(1)	(11)
Cash used in investing activities	(941)	(119)	(110)
FINANCING ACTIVITIES
Shares issued	4	3	527
Share issuance costs	0	0	(34)
Withholding taxes paid related to net share settlement of equity awards	(4)	(1)	(5)
Repayment of long-term debt	(613)	(682)	(765)
Long-term debt issued	1,161	411	71
Debt issuance costs	0	(8)	0
Interest paid on credit facilities	(105)	(23)	(29)
Cash provided by (used in) financing activities	443	(300)	(235)
Effect of exchange rate changes on cash and cash equivalents	2	(8)	(4)
CASH POSITION
Increase (decrease) in cash and cash equivalents	2	10	(38)
Cash and cash equivalents, beginning of year	125	115	153
Cash and cash equivalents, end of year	$ 127	$ 125	$ 115

Notes to Consolidated Financial

Notes to Consolidated Financial Statements	12 Months Ended
	Dec. 31, 2023
Notes to Consolidated Financial Statements
Notes to Consolidated Financial Statements	TELUS International (Cda) Inc. (TELUS International) is a leading digital customer experience innovator that designs, builds and delivers next-generation solutions, including AI and content moderation, for global and disruptive brands. TELUS International was incorporated under the Business Corporations Act (British Columbia) on January 2, 2016, and is a subsidiary of TELUS Corporation. TELUS International maintains its registered office at 510 West Georgia Street, Vancouver, British Columbia. The terms we , us , our or ourselves are used to refer to TELUS International and, where the context of the narrative permits or requires, its subsidiaries. Additionally, the term TELUS Corporation is a reference to TELUS Corporation, and where the context of the narrative permits or requires, its subsidiaries, excluding TELUS International.

Summary of significant accounti

Summary of significant accounting policies	12 Months Ended
	Dec. 31, 2023
Summary of significant accounting policies
Summary of significant accounting policies	Summary of material accounting policies (a) Basis of presentation Our consolidated financial statements are expressed in United States dollars. The generally accepted accounting principles that we use are International Financial Reporting Standards as issued by the International Accounting Standards Board (IFRS-IASB). Generally accepted accounting principles require that we disclose our material accounting policies. Below, we have summarized our accounting policies, including those that have a material effect on these financial statements, and how we have applied certain accounting policies and our choices where selection among various generally accepted accounting principle-compliant accounting policies is permitted. In our assessment, all of our accounting policy disclosures are not equally material for us, as set out in the accompanying table; their relative materiality to us will evolve over time as we do. In our consolidated statements of financial position, we have reclassified certain current and non-current provisions previously included in Accounts payable and accrued liabilities and Other long-term liabilities, respectively, based on materiality. All amounts presented for the comparative period have been reclassified to conform with the current period presentation. These consolidated financial statements were authorized by our Board of Directors fo r issue on February 9, 2024 . Accounting policy requiring a more Accounting policy Yes No General application (a) Basis of presentation X (b) Consolidation X (c) Use of estimates and judgments X (d) Financial instruments—recognition and measurement X (e) Hedge accounting X Results of operations focused (f) Revenue recognition X (g) Depreciation, amortization and impairment X (h) Translation of foreign currencies X (i) Income and other taxes X (j) Share-based compensation X (k) Employee future benefit plans X Financial position focused (l) Cash and cash equivalents X (m) Property, plant and equipment; intangible assets X (n) Provisions X (o) Lease liabilities X (p) Business combinations X The table above summarizes our accounting policies, including those that require a more significant choice or application of judgment, and thus are considered our material accounting policies in accordance with IAS 1, Presentation of Financial Statements. (b) Consolidation As at December 31, 2023, o ur consolidated financial statements include our accounts and the accounts of all of our subsidiaries. Our principal subsidiaries (wholly-owned unless otherwise denoted) are: TELUS International (U.S.) Corp.; Xavient Digital LLC; CallPoint New Europe EAD; TELUS International Services Limited; TELUS International Philippines Inc.; Voxpro Limited; TELUS International Germany GmbH; TELUS International AI Inc.; and WillowTree LLC (86% interest) . Our financing arrangements and those of our subsidiaries do not impose restrictions on inter-corporate dividends, but external dividends are restricted based upon total net debt to adjusted earnings before interest, income taxes, depreciation and amortization ratios, all as defined by our financing arrangements. On a continuing basis, we review our corporate organization and effect changes as appropriate so as to enhance the value of TELUS International. This process can, and does, affect which of our subsidiaries are considered principal subsidiaries at any particular point in time. (c) Use of estimates and judgments The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates, assumptions and judgments that affect: the reported amounts of assets and liabilities at the date of the financial statements; the disclosure of contingent assets and liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates Examples of the estimates and assumptions that we make and their relative significance and degree of difficulty are as follows: Judgments Examples of our use of judgment, apart from those involving estimation, include the following: • Assessments about whether line items are sufficiently material to warrant separate presentation in the primary financial statements and, if not, whether they are sufficiently material to warrant separate presentation in the financial statement notes. In the normal course, we make changes to our assessments regarding presentation materiality so that they reflect current economic conditions. Due consideration is given to the view that it is reasonable to expect differing opinions of what is, and is not, material. • In respect of revenue-generating transactions, generally we must make judgments that affect the timing of the recognition of revenue as it relates to assessing when we have satisfied our performance obligations to our customers, either at a point in time or over a period of time. • The preparation of our financial statements in accordance with generally accepted accounting principles requires management to make judgments that affect the financial statement disclosure of information regularly reviewed by our chief operating decision maker used to make resource allocation decisions and to assess performance, as further discussed in Note 23—Segment Reporting . A significant judgment we make is that our cash flows are sufficiently indistinguishable given our global operating model, resulting in a single operating and reporting segment. • Determination of the functional currency of each subsidiary involves significant judgment. The determination of functional currency affects the carrying value of non-current assets included in the statement of financial position and, as a consequence, the amortization of those assets, as well as the exchange gains and losses recorded in the consolidated statement of comprehensive income and the consolidated statement of equity. • The decision to depreciate and amortize any property, plant, equipment and intangible assets that are subject to amortization on a straight-line basis, as we believe that this method reflects the consumption of resources related to the economic lifespan of those assets better than an accelerated method and is more representative of the economic substance of the underlying use of those assets. • In connection with the annual impairment testing of goodwill, there are instances where we must exercise judgment in the determination of our cash generating unit. A significant judgment that we make is that each geographic area in which we operate is insufficiently distinct, making it impractical to objectively distinguish the cash flows of each region. As such, each region is not an individual cash generating unit. • In respect of claims and lawsuits, as discussed further in Note 18(b)—Contingent liabilities—Claims and lawsuits , the determination of whether an item is a contingent liability or whether an outflow of resources is probable and thus needs to be accounted for as a provision. (d) Financial instruments—recognition and measurement In respect of the recognition and measurement of financial instruments, we have adopted the following policies: • Derivatives that are part of an established and documented cash flow hedging relationship are accounted for as held for hedging. We believe that classification as held for hedging results in a better matching of the change in the fair value of the derivative financial instrument with the risk exposure being hedged. • Derivatives that are not part of a documented cash flow hedging relationship are accounted for as held for trading and thus are measured at fair value through net income. • Transaction costs, other than in respect of items held for trading, are added to the initial fair value of the acquired financial asset or financial liability. We have selected this method as we believe that it results in a better matching of the transaction costs with the periods in which we benefit from the transaction costs. (e) Hedge accounting Hedge accounting The purpose of hedge accounting, in respect of our designated hedging relationships, is to ensure that counterbalancing gains and losses are recognized in the same periods. We have chosen to apply hedge accounting as we believe that it is more representative of the economic substance of the underlying transactions. In order to apply hedge accounting, a high correlation (which indicates effectiveness) is required in the offsetting changes in the risk-associated values of the financial instruments (the hedging items) used to establish the designated hedging relationships and all, or a part, of the asset, liability or transaction having an identified risk exposure that we have taken steps to modify (the hedged items). We assess the anticipated effectiveness of designated hedging relationships at inception and their actual effectiveness for each reporting period thereafter. We consider a designated hedging relationship to be effective if the following critical terms match between the hedging item and the hedged item: the notional amount of the hedging item and the principal amount of the hedged item; maturity dates; payment dates; and interest rate index (if, and as, applicable). Any ineffectiveness, such as would result from a difference between the notional amount of the hedging item and the principal amount of the hedged item, or from a previously effective designated hedging relationship becoming ineffective, is reflected in the consolidated statements of income and other comprehensive income as Interest expense if in respect of long-term debt, or as Goods and services purchased if in respect of future purchase commitments. Hedging assets and liabilities In the application of hedge accounting, an amount (the hedge value) is recorded in the consolidated statement of financial position in respect of the fair value of the hedging items. The net difference, if any, between the amounts recognized in the determination of net income and the amounts necessary to reflect the fair value of the designated cash flow hedging items recorded in the consolidated statement of financial position is recognized as a component of Other comprehensive income. In the application of hedge accounting to the finance costs arising from interest paid on our long-term debt, the amount recognized in the determination of net income is the amount that counterbalances the difference between interest calculated at a variable interest rate, and the fixed interest rate as per our credit facility. (f) Revenue recognition Our solutions involve delivery of multiple services and products that occur at different points in time and/or over different periods of time. These arrangements may contain multiple performance obligations and the transaction price is measured and allocated among the performance obligations based upon their relative stand-alone selling price. Our relevant revenue recognition policies are then applied to the performance obligations. Multiple contracts with a single customer are normally accounted for as separate arrangements. In instances where multiple contracts are entered into with a customer in a short period of time, the contracts are reviewed as a group to ensure that, as with multiple performance obligation arrangements, their relative stand-alone selling prices are appropriate. Our revenues are recorded net of any value-added and/or sales taxes billed to the customer concurrent with a revenue-generating transaction. Discounts and rebates are recorded as a reduction to revenue rather than as an expense. We generally recognize revenues for each accounting period as services are provided, based on fees earned per-productive hour or per transaction. For fixed-fee contracts, revenues are estimated and recognized over time using the input method, which requires us to identify each performance obligation at the inception of a customer contract, and recognize revenue based on costs incurred toward the satisfaction of each performance obligation, such as labor hours expended, relative to the total expected costs required to satisfy that performance obligation, and where costs depict our performance in transferring control of goods or services to the customer. Fees are invoiced to customers on a regular basis. Advance billings are recorded when a billing occurs prior to provision of the associated services; such advance billings are recognized as revenue in the period in which the services are provided. (g) Depreciation, amortization and impairment Depreciation and amortization Property, plant, and equipment, including right-of-use lease assets, are depreciated on a straight-line basis over their estimated useful lives. Depreciation includes amortization of right-of-use lease assets and amortization of leasehold improvements. Leasehold improvements are normally amortized over the lesser of their expected average service life or the term of the lease. Intangible assets with finite lives are amortized on a straight-line basis over their estimated useful lives, which are reviewed at least annually and adjusted as appropriate. Estimated useful lives for our property, plant and equipment and right-of-use assets subject to depreciation are as follows: Estimated Computer hardware and network assets 3 to 7 years Buildings and leasehold improvements 5 to 20 years Furniture and equipment 3 to 7 years Right-of-use lease assets 3 to 20 years Estimated useful lives for our intangible assets subject to amortization are as follows: Estimated Customer contracts and related customer relationships 4 to 15 years Software 3 to 7 years Brand 3 years Standard operating procedures 5 years Crowdsource assets 8 years Impairment—general Impairment testing compares the carrying values of the assets or cash generating units being tested with their recoverable amounts (the recoverable amount being the greater of an asset’s value-in-use or its fair value less costs to sell). Impairment losses are immediately recognized, to the extent that the carrying value of an asset exceeds its recoverable amount. Should the recoverable amounts for impaired assets subsequently increase, the impairment losses previously recognized (other than in respect of goodwill) may be reversed to the extent that the reversal is not a result of “unwinding the discount” and that the resulting carrying values do not exceed the carrying values that would have been the result if no impairment losses had been previously recognized. Impairment—property, plant and equipment; intangible assets subject to amortization In our assessment of estimated useful lives of assets, we consider such items as the timing of technological obsolescence, competitive pressures and future infrastructure utilization plans. These considerations could indicate that the carrying value of an asset may not be recoverable. If the carrying value of an asset were not considered recoverable, an impairment loss is recorded. Impairment—goodwill We assess the carrying value of goodwill each period for indicators of impairment, and an impairment test is performed when an indicator exists. At a minimum, goodwill is tested annually for impairment on October 1. We assess our goodwill by comparing the recoverable amount of our business to its carrying value. To the extent that the carrying value exceeds its recoverable amount, the excess amount is recorded as an impairment charge in the period. (h) Translation of foreign currencies Trade transactions completed in foreign currencies are translated into United States dollars at the rates of exchange prevailing at the time of the transactions. Monetary assets and liabilities denominated in foreign currencies are translated into United States dollars at the rate of exchange in effect at the statement of financial position date, with any resulting gain or loss recorded to Foreign exchange in the consolidated statement of income and other comprehensive income. We have foreign subsidiaries that do not have the United States dollar as their functional currency. Foreign exchange gains and losses arising from the translation of these foreign subsidiaries’ accounts into United States dollars are reported as a component of other comprehensive income. (i) Income and other taxes We follow the liability method of accounting for income taxes. Under this method, current income taxes are recognized for the estimated income taxes payable for the current year. Deferred income tax assets and liabilities are recognized for temporary differences between the tax and accounting bases of assets and liabilities, and also for the benefit of losses available to be carried forward to future years for tax purposes that are more likely than not to be realized. The amounts recognized in respect of deferred income tax assets and liabilities are based upon the expected timing of the reversal of temporary differences or usage of tax losses and application of the substantively enacted tax rates at the time of reversal or usage. We account for any changes in substantively enacted income tax rates affecting deferred income tax assets and liabilities in full in the period in which the changes are substantively enacted. We account for changes in the estimates of tax balances for prior years as estimate revisions in the period in which the changes in estimates arise; we have selected this approach as its emphasis on the statement of financial position is more consistent with the liability method of accounting for income taxes. Our operations are complex and the related domestic and foreign tax interpretations, regulations, legislation and jurisprudence are continually changing. As a result, there are usually some tax matters in question that result in uncertain tax positions. We recognize the income tax benefit of an uncertain tax position when it is more likely than not that the ultimate determination of the tax treatment of the position will result in that benefit being realized; however, this does not mean that tax authorities cannot challenge these positions. We accrue an amount for interest charges on current tax liabilities that have not been funded, which would include interest and penalties arising from uncertain tax positions. We include such charges in the consolidated statement of income and other comprehensive income as a component of income tax expense. (j) Share-based compensation General Share-based compensation awards issued to certain of our employees include phantom and equity restricted share units, and phantom and equity share options. We recognize a share-based compensation expense in respect of these plans based on the fair value of the awards. Generally, the compensation expense of the award is recognized on a straight-line basis over the vesting of the award subject to continued service with us through the vesting date. A compensation expense is recognized for awards containing performance conditions only to the extent that it is probable that those performance conditions will be met and based on the expected achievement factor. Adjustments are made to reflect expected and actual forfeitures during the vesting period due to failure to satisfy service conditions or performance conditions against the original compensation expense recognized. Restricted share units Restricted share units are accounted for as equity instruments if they will be equity-settled, or liability instruments if they will be cash-settled. For equity-accounted awards, we recognize and measure compensation expense based on the grant date fair value, which is determined to be equal to the market price of one TELUS International subordinate voting share or TELUS Corporation common share. Fair value is not subsequently re-measured unless the conditions on which the award was granted are modified. For liability-accounted awards, we accrue a liability equal to the product of the number of vesting restricted share units multiplied by the market price of one TELUS International subordinate voting share at the end of the reporting period. A mark-to-market adjustment is recorded each period based on changes in the market price of shares. Share option awards Share option awards are accounted for as equity instruments if they will be equity-settled, or liability instruments if they are cash-settled. For equity-accounted awards, we recognize and measure compensation expense based on the grant date fair value, which is determined using the Black-Scholes option pricing model. Fair value is not subsequently re-measured unless the conditions on which the award was granted are modified. Proceeds arising from the exercise of equity-accounted share option awards are recognized as an increase to share capital, as are the recognized grant-date fair values of the exercised share option awards. For liability-accounted awards, we recognize and measure compensation expense based on the fair value of the award at the end of each reporting period, which is determined using the Black-Scholes option pricing model. The Black-Scholes option pricing model requires the input of certain assumptions, some of which are highly subjective, including the expected volatility of the price of our common shares, the expected term of the option and the expected dividend yield of our shares. These estimates involve inherent uncertainties and the application of management’s judgment. If factors change and different assumptions are used, our share-based compensation expense could be materially different in future periods. (k) Employee future benefit plans The Company records annual amounts relating to its defined benefit plan based on calculations that incorporate various actuarial and other assumptions, including discount rates, mortality, compensation increase and turnover rates. When the defined benefit plan’s key assumptions fluctuate relative to their immediately preceding year-end values, such actuarial gains or losses are recognized in other comprehensive income. We participate in defined benefit pension plans that share risks between TELUS Corporation and its subsidiaries as well as unfunded, non-contributory retirement plans of TELUS International and its subsidiaries. TELUS Corporation’s policy is to charge us our participant-based net defined benefit pension cost, as measured in accordance with IAS 19 , Employee Benefits , which are actuarially determined using the accrued benefit method pro-rated on service and management’s best estimates of salary escalation and the retirement ages of employees. In the determination of net income, net interest for each plan, which is the product of the plan’s surplus (deficit) multiplied by the discount rate, is included as a component of Interest expense. Contributions to defined contribution plans are charged to the consolidated statements of income in the period in which services are rendered by the covered employees. (l) Cash and cash equivalents Cash and cash equivalents includes short-term investments in money market funds and other highly liquid, low-risk instruments with maturities of less than three months. Cash and cash equivalents are presented net of outstanding items, including cheques written but not cleared by the related banks as at the statement of financial position date. (m) Property, plant and equipment; intangible assets Property, plant and equipment (excluding right-of-use assets) are recorded at historical cost. Self-constructed property, plant and equipment assets includes materials, direct labor and applicable overhead costs. Right-of-use assets, which are included in property, plant and equipment, are initially measured at cost, which includes the amount of lease liabilities recognized at the inception of the lease, initial direct costs incurred, and lease payments made at or before the lease commencement date less any lease incentives received. Subsequent to the initial recognition, right-of-use assets may be adjusted for any re-measurement of the corresponding lease liabilities. Intangible assets are recorded at historical cost. For internally-developed internal-use software, the historical cost recorded includes materials, direct labor and direct labor-related costs. (n) Provisions Provisions are recognized when the Company has a present legal or constructive obligation as a result of past events, and it is probable that an outflow of resources will be required to settle the obligation and the amount can be reliably estimated. Provisions are measured at management’s best estimate of the expenditure required to settle the obligation at the end of the reporting period and are discounted to present value where the effect is material. Where discounting is used, the increase in the provision as a result of the passage of time is recognized as Interest expense in our consolidated statements of income and comprehensive income. (o) Lease liabilities Lease liabilities are initially measured at the present value of lease payments to be made over the expected lease term. Lease payments include fixed payments, less any lease incentives or discounts. The expected lease term is the non-cancellable term of the lease, together with any periods covered by an option to extend the lease if it is reasonably certain to be exercised, considering all relevant factors and terms of the lease arrangement. In calculating the present value of lease payments, we use the interest rate implicit in the lease, if that rate can be readily determined, otherwise we use our incremental borrowing rate based on a similar security, term and economic environment. Subsequent to the initial recognition, we monitor for significant events or changes in circumstances that would require a change in the expected lease term, including a modification to the lease, and adjust the lease liability accordingly based on the change in present value of lease payments. (p) Business combinations We use the acquisition method to account for business combinations, under which we allocate the excess of the purchase price of business acquisitions over the fair value of identifiable net assets acquired to goodwill. The purchase price is determined as the fair value of assets transferred, liabilities assumed, or equity instruments issued on the date of exchange, which may include contingent considerations that are initially measured at fair value at the acquisition date. Subsequent changes to the fair value of any contingent considerations are recognized through profit or loss. Acquisition-related costs are expensed as incurred. For intangible assets acquired, the fair value is generally derived from a valuation analysis prepared by management or third-party experts as needed, based on appropriate valuation techniques using a forecast of the total expected future net cash flows and closely linked to the assumptions made by management regarding the future performance of the assets concerned and the discount rate applied. Where other markets or market participants are readily observable, these are considered in the determination of fair value. If the fair values of the assets, liabilities and contingent liabilities can only be calculated on a provisional basis, the business combination is recognized initially using provisional values. Any adjustments resulting from the completion of the measurement process are recognized within twelve months of the date of acquisition. Business transfers from related parties are accounted for as common control transactions using the predecessor accounting method wherein no assets or liabilities acquired are restated to their fair values and the results of operations include the transferred businesses’ results only from the date of our acquisition of them. No goodwill, except to the extent transferred as part of the transaction, is recognized on such transactions, and any excess purchase price is recorded as an adjustment to owners’ equity.

Accounting policy developments

Accounting policy developments	12 Months Ended
	Dec. 31, 2023
Accounting policy developments
Accounting policy developments	Accounting policy developments Initial application of standards, interpretations and amendments to standards and interpretations in the reporting period In February 2021, the International Accounting Standards Board issued narrow-scope amendments to IAS 1, Presentation of Financial Statements , IFRS Practice Statement 2, Making Materiality Judgements and IAS 8 , Accounting Policies, Changes in Accounting Estimates and Errors . The amendments were effective for annual periods beginning on or after January 1, 2023. The amendments require the disclosure of material accounting policy information rather than disclosing significant accounting policies, and clarify how to distinguish changes in accounting policies from changes in accounting estimates. Our financial disclosure was not materially affected by the application of the amendments. In May 2021, the International Accounting Standards Board issued targeted amendments to IAS 12, Income Taxes. The amendments were effective for annual periods beginning on or after January 1, 2023. With a view to reducing diversity in reporting, the amendments clarify that companies are required to recognize deferred taxes on transactions where both assets and liabilities are recognized, such as with leases and asset retirement (decommissioning) obligations. Our financial performance or disclosure was not materially affected by the application of the amendments. In May 2023, the International Accounting Standards Board issued International Tax Reform - Pillar Two Model Rules (Amendments to IAS 12) , which amended IAS 12, Income Taxes . The amendments provide, and we use the, temporary relief from accounting for deferred income taxes arising from the Organisation for Economic Co-operation and Development's (OECD) Pillar Two model rules (such rules ensuring that large multinational corporations would be subject to a minimum 15% income tax rate in every jurisdiction in which they operate). As different jurisdictions are expected to implement the OECD rules at different speeds and at different points in time, the amendments are intended to help ensure consistency within, and comparability across, financial statements. The amendments are effective for annual reporting periods beginning on or after January 1, 2023. We have assessed the impacts of the amended standard, and our financial disclosure was not materially affected by the application of the amendments.

Capital structure financial pol

Capital structure financial policies	12 Months Ended
	Dec. 31, 2023
Disclosure of objectives, policies and processes for managing capital [abstract]
Capital structure financial policies	Capital structure financial policies Our objective when managing capital is to maintain a flexible capital structure that optimizes the cost and availability of capital at acceptable risk levels. In the management of capital and in its definition, we include owners’ equity (excluding accumulated other comprehensive income), long-term debt (including long-term credit facilities and any hedging assets or liabilities associated with our long-term debt, net of amounts recognized in accumulated other comprehensive income and excluding lease liabilities) and cash and cash equivalents. We manage capital by monitoring the financial covenants in our credit facility ( Note 16—Long-term debt ). We manage our capital structure and make adjustments to it in light of changes in economic conditions and the risk characteristics of our business. In order to maintain or adjust our capital structure, we may issue new shares, issue new debt with different terms or characteristics, which may be used to replace existing debt, or pay down our debt balance with cash flows from operations. On February 3, 2021, we completed our IPO and issued 21 million subordinate voting shares at $25.00 per shar e. Net cash proceeds were used to repay a portion of outstanding borrowings under our credit agreement. In connection with our acquisition of WillowTree on January 3, 2023, we amended and expanded our existing credit facility to an aggregate $2.0 billion facility, consisting of an $800 million revolving credit facility and $1.2 billion in term loans payable in five years (see Note 14(c)—Intangible assets and goodwill—Business acquisitions for additional details on the acquisition of WillowTree, and Note 16(b)—Long-term debt—Credit facility for additional details on our credit facility).

Revenue

Revenue	12 Months Ended
	Dec. 31, 2023
Receivables from contracts with customers [abstract]
Revenue	Revenue We earn revenue pursuant to contracts with our clients, who operate in various industry verticals. The following presents our earned revenue disaggregation for our five largest industry verticals: Years Ended December 31 (millions) 2023 2022 2021 Tech and Games $ 1,181 $ 1,148 $ 999 Communications and Media 645 580 537 eCommerce and FinTech 286 292 259 Healthcare 159 58 47 Banking, Financial Services and Insurance 150 159 97 All others (1) 287 231 255 $ 2,708 $ 2,468 $ 2,194 ______________________________________________ (1) All others includes, among others, travel and hospitality, energy and utilities, retail, and consumer packaged goods industry verticals. We serve our clients, who are primarily domiciled in North America, from multiple delivery locations across four geographic regions. In addition, our TIAI Data Solutions business has clients that are largely supported by crowdsourced contractors that are globally dispersed and not limited to the physical locations of our delivery centres. The following table presents our earned revenue disaggregated by geographic region , based on location of our delivery centre or where service was provided, for the following periods: Years Ended December 31 (millions) 2023 2022 2021 Europe $ 821 $ 880 $ 921 North America 793 621 502 Asia-Pacific 631 591 455 Central America and others (1) 463 376 316 $ 2,708 $ 2,468 $ 2,194 _____________________________________________ (1)

Salaries and benefits

Salaries and benefits	12 Months Ended
	Dec. 31, 2023
Classes of employee benefits expense [abstract]
Salaries and benefits	Salaries and benefits Years Ended December 31 (millions) Note 2023 2022 2021 Wages and salaries $ 1,532 $ 1,288 $ 1,133 Benefits 123 96 82 Pensions—defined contribution 19 9 9 7 $ 1,664 $ 1,393 $ 1,222

Share-based compensation

Share-based compensation	12 Months Ended
	Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [abstract]
Share-based compensation	Share-based compensation (a) Rest ricted share unit plan Restricted share units We have various restricted share unit award types, including equity-accounted restricted share units (RSUs) and performance restricted share units (PSUs), and liability-accounted restricted share units (Phantom RSUs) and performance restricted share units (Phantom PSUs). All restricted share units are nominally equal in value to one TELUS International subordinate voting share, and liability-accounted restricted share units are settled in cash. All restricted share units granted during the years ended December 31, 2023, 2022 and 2021, were equity-accounted RSUs, whereas all restricted share units granted prior to December 31, 2020, were liability-accounted Phantom RSUs or Phantom PSUs. The following table presents a summary of the activity related to our restricted share units: US$ denominated Number of units Weighted average grant-date Non-vested Vested Outstanding, January 1, 2021 1,383,642 — $ 7.94 Granted 1,383,983 — $ 27.26 Vested (805,429) 805,429 $ 7.29 Exercised — (805,429) $ 7.29 Forfeited (111,389) — $ 20.16 Outstanding, December 31, 2021 1,850,807 — $ 21.94 Granted 821,223 59,512 $ 26.41 Vested (798,373) 798,373 $ 16.63 Exercised (1) — (857,885) $ 17.52 Forfeited (267,836) — $ 19.85 Outstanding, December 31, 2022 1,605,821 — $ 27.10 Granted 1,567,809 770,043 $ 15.34 Vested (423,501) 423,501 $ 26.49 Exercised (1) — (1,193,544) $ 17.01 Forfeited (134,383) — $ 23.80 Outstanding, December 31, 2023 2,615,746 — $ 21.36 ______________________________________________ (1) During the year ended December 31, 2023, 1,193,544 RSUs (2022 - 360,044 RSUs) were exercised and settled with subordinate voting shares issued from treasury, and for the year ended December 31, 2022, all remaining 497,841 Phantom RSUs and Phantom PSUs were exercised and cash-settled in for $11 million based on a weighted average share price on the dates of exercises of $22.01. During the year ended December 31, 2023, RSUs granted were equity-settled awards and generally vest in three annual instalments. PSUs granted vest in three years and are subject to TELUS International revenue and earnings per share performance growth targets. These RSUs and PSUs are eligible for dividend reinvestment units, if declared and paid by TELUS International, as such the fair value was determined to be equal to the market price of a subordinate voting share of TELUS International on the date of grant. As at December 31, 2023, the outstanding restric ted share units were comprised of 1,926,994 RSUs, 688,752 PSUs (2022 - 1,218,796 RSUs, 387,025 PSUs). Phantom TELUS Corporation restricted share units (Phantom TELUS Corporation RSU) Each Phantom TELUS Corporation RSU was nominally equal in value to one TELUS Corporation common share and was nominally entitled to the dividends that would arise thereon if it were an issued and outstanding TELUS Corporation common share. The notional dividends were recorded as additional issuances of restricted share units during the vesting period of the restricted share unit. Due to the notional dividend mechanism, the grant-date fair value of restricted share units equaled the fair market value of the corresponding TELUS Corporation common shares at the grant date. The restricted share units generally became payable when vesting was completed and typically vested over a period of 30 months (the requisite service period). These restricted share units generally had a variable payout (0%-150%) depending upon our financial performance and non-market quality-of-service performance conditions. The grant-date fair value of our restricted share units affected by the financial performance and non-market quality-of-service performance conditions equaled the fair market value of the corresponding TELUS Corporation common shares at the grant date. The Phantom TELUS Corporation RSUs are historic grants made to certain employees, and no new awards are expected to be made. There were no awards outstanding and no activity occurred during the year ended December 31, 2023. 2022 2021 Phantom TELUS Phantom TELUS Years Ended December 31 Canadian $ denominated Non-vested Vested Weighted Non-vested Vested Weighted Outstanding, beginning of year 78,011 — $ 24.20 156,749 — $ 24.17 Granted — — $ — 24,757 — $ 27.58 Vested (59,549) 59,549 $ 24.13 (85,154) 85,154 $ 23.96 Exercised (1) — (59,549) $ 24.13 — (86,745) $ 25.22 Dividends 1,568 — $ 30.85 5,023 1,591 $ 27.43 Forfeited (20,030) — $ 24.92 (23,364) — $ 24.72 Outstanding, end of year — — $ — 78,011 — $ 24.20 _________________________________________________ (1) In 2022, all remaining Phantom TELUS Corporation RSUs were either forfeited or exercised and cash-settled for CAD$2 million, reflecting the share price on the date of exercise of CAD$28.67. (b) Share option awards We have equity-settled share option awards (Share Options), and liability-accounted share option awards (Phantom Share Options). Share Options grant the right to the employee recipient to purchase and receive a subordinate voting share of TELUS International for a pre-determined exercise price. Phantom Share Options grant the right to the employee recipient to receive cash equal to the intrinsic value of the share option award, determined as the difference between the market price of a subordinate voting share of TELUS International and the exercise price. Share option awards are generally exercisable for a period of ten years from the time of grant. Beginning January 1, 2021, share option awards granted were equity-settled. During the year ended December 31, 2023, Share Options granted generally vested annually over a four-year period, in four equal instalments (graded-vesting method), and expire in ten years. All Share Options are valued using the Black-Scholes valuation model on the date of grant, and are not revalued subsequently unless a modification has occurred. Phantom Share Options generally vest over 30 months and are liability-accounted, which requires a periodic mark-to-market adjustment to revalue the liability to reflect the fair value of the awards. Fair value of the awards is determined using the Black-Scholes valuation model, adjusted for the number of awards that have vested to date and the expected variable payout (0%-100%) depending upon our financial performance and non-market quality-of-service performance conditions. As at December 31, 2023, there were no Phantom Share Options remaining. In using the Black-Scholes valuation model, the following inputs are used: risk-free interest rate is based on a Government of Canada yield curve that is current at the time of grant; expected lives of the share option awards are based on management’s best estimate of the time to option expiration based on historical trends and other factors; expected volatility considers the historical volatility in the observable prices of our own and our comparable peers; dividend yield is the expected dividend yield for a subordinate voting share of TELUS International. The following table presents the activity related to our share option awards. US $ denominated Canadian $ denominated Number of share Number of share Non-vested Vested Weighted Non-vested Vested Weighted Outstanding, January 1, 2021 654,633 3,267,423 $ 6.23 — 242,244 $ 4.75 Granted 579,949 — $ 25.00 — — — Vested (150,397) 150,397 $ 5.78 — — — Exercised — (1,321,238) $ 5.74 — (242,244) $ 4.75 Outstanding, December 31, 2021 1,084,185 2,096,582 $ 9.86 — — — Vested (293,860) 293,860 $ 8.46 — — — Exercised (1) — (293,860) $ 8.46 — — — Forfeited (209,610) — $ 6.59 — — — Outstanding, December 31, 2022 580,715 2,096,582 $ 10.27 — — — Vested (358,413) 358,413 $ 6.43 — — — Exercised (1) — (124,337) $ 8.46 — — — Forfeited (2,202) (13,975) $ 5.77 — — — Outstanding, December 31, 2023 (2) 220,100 2,316,683 $ 10.39 — — — Exercisable, December 31, 2023 — 2,316,683 $ 9.00 — — — _________________________________________________ (1) During the year ended December 31, 2023, nil Share Options (2022 - 159,354 Share Options) were exercised and settled for shares issued from treasury (2022 - 65,859 shares, net of withholding taxes), and 124,337 Phantom Share Options (2022 - 134,506 Phantom Share Options) were exercised and cash-settled for $2 million ( 2022 - $2 million), reflecting the intrinsic value at the date of settlement and a wei ghted average share price on the dates of exercises of $14.81 (2022 - $23.75). (2) For options outstanding at the end of the year, the exercise prices ranged from $4.87 to $8.95 for 2,096,582 options (2022 - $4.87 to $8.95 for 2,223,121 options) with a weighted-average remaining contractual life of 3.0 years (2022 - 4.2 years), and $25.00 for 440,201 options (2022 - $25.00 for 454,176 options) with a weighted-average remaining expected life of 7.2 years (2022 - 8.2 years). There were no Share Options granted during the years ended December 31, 2023 and 2022. The weighted average fair value of Share Options granted during the year ended December 31, 2021, and the weighted average assumptions used in the fair value estimation at the time of grant, calculated by using the Black-Scholes model, are as follows: Year Ended December 31 2021 Share option award fair value (per share option) $5.34 Risk free interest rate 0.73% Expected lives (years) 6.5 Expected volatility 19.30% Dividend yield — (c) Other During the year ended December 31, 2023, we granted Unit Appreciation Rights (UARs) to certain employees of WillowTree which have a maximum value of $120 million, are subject to continued employment, and the fair value determined based on the achievement of certain performance targets of WillowTree. These UARs may be settled in cash or, at our option, TELUS International subordinate voting shares, vest in three accounted. The settlement of UARs are funded by the provisions for written put options arising from the WillowTree acquisition (see Note 14(c)—Intangible assets and goodwill—Business acquisitions and Note 15—Provisions ). As such, total payments made to settle any UARs following the vesting of each tranche will be deducted from the gross payments required to settle these provisions. During the year ended December 31, 2023, we acquired two businesses and provided performance earn-outs to certain of its employees, subject to continued employment, which have a maximum payout of approximately $12 million payable in fiscal 2025 and may be settled in cash or, at our option, TELUS International subordinate voting shares (see Note 14(c)—Intangible assets and goodwill—Business acquisitions ). These earn-outs were included in share-based compensation.

Interest expense

Interest expense	12 Months Ended
	Dec. 31, 2023
Interest expense and foreign exchange
Interest expense	Interest expense Years Ended December 31 (millions) 2023 2022 2021 Interest expense Interest on long-term debt, excluding lease liabilities $ 104 $ 25 $ 27 Interest on lease liabilities 24 14 14 Amortization of financing fees and other 3 2 3 Interest accretion on provisions 13 — — $ 144 $ 41 $ 44

Income taxes

Income taxes	12 Months Ended
	Dec. 31, 2023
Major components of tax expense (income) [abstract]
Income taxes	Income taxes (a) Expense composition and rate reconciliation Years Ended December 31 (millions) 2023 2022 2021 Current income tax expense (recovery) For current reporting year $ 67 $ 96 $ 82 Adjustments recognized in the current year for income tax of prior years (5) 1 1 62 97 83 Deferred income tax expense (recovery) Arising from the origination and reversal of temporary differences (55) (31) (15) Adjustments recognized in the current year for income tax of prior years (2) 1 (4) (57) (30) (19) $ 5 $ 67 $ 64 Our income tax expense and effective income tax rate di ffers from that calculated by applying the applicable statutory rates for the following reasons: Years Ended December 31 (millions, except percentages) 2023 2022 2021 Income taxes computed at applicable statutory rates $ 5 7.8 % $ 57 22.7 % $ 32 22.6 % Non-deductible items — — % 9 3.6 % 16 11.3 % Withholding and other taxes 18 31.2 % 23 9.3 % 18 12.7 % Losses not recognized 1 1.7 % 7 2.8 % 6 4.2 % Foreign tax differential (12) (20.3) % (30) (12.0) % (3) (2.1) % Adjustments recognized in the current year for income tax of prior years (7) (11.9) % 2 0.8 % (3) (2.1) % Other — — % (1) (0.4) % (2) (1.5) % Income tax expense $ 5 8.5 % $ 67 26.8 % $ 64 45.1 % (b) Temporary differences We must make significant estimates in respect of the composition of our deferred income taxes. Our operations are complex and the related income tax interpretations, regulations, legislation and jurisprudence are continually changing. As a result, there are usually some income tax matters in question. Temporary differences comprising the net deferred income tax liability and the amounts of deferred income taxes recognized in the consolidated statement of income and other comprehensive income and the consolidated statement of changes in owners’ equity are estimated as follows: (millions) Property, plant and equipment Net pension Debt and Provisions Non-capital Leases Net deferred As at January 1, 2022 $ (316) $ 4 $ 8 $ 4 $ 15 $ 3 $ (282) Deferred income tax (expense) recovery recognized in: Net income 32 (3) (2) 9 (5) (1) 30 Other comprehensive income 8 — — (1) — — 7 Foreign currency translation — — — (5) — — (5) As at December 31, 2022 $ (276) $ 1 $ 6 $ 7 $ 10 $ 2 $ (250) Acquired during the year & other (83) — — 2 14 — (67) Deferred income tax (expense) recovery recognized in: Net income 35 2 (2) 4 16 2 57 Other comprehensive income — — — 4 (2) — 2 Foreign currency translation (3) — — — — — (3) As at December 31, 2023 $ (327) $ 3 $ 4 $ 17 $ 38 $ 4 $ (261) Temporary differences arise from the carrying value of the investments in subsidiaries exceeding their tax base, for which no deferred income tax liabilities have been recognized because the parent is able to control the timing of the reversal of the difference and it is probable that it will not reverse in the foreseeable future. In our specific instance, this is relevant to our investments in our non-Canadian subsidiaries. We are not required to recognize such deferred income tax liabilities, as we are in a position to control the timing and manner of the reversal of the temporary differences and it is probable that such differences will not reverse in the foreseeable future. (c) Other As at December 31, 2023, the Company had cumulative tax losses of $56 million for which no deferred tax assets were recognized (2022 - $53 million). Of this amount, $6 million can be carried forward indefinitely, $38 million has a 20-year carryforward period and $12 million has a 5-year carryforward period. During the year ended December 31, 2023, we recognized the benefit of $1 million (2022 - $2 million) of non-capital losses. As at December 31, 2023, the Company has a deferred tax asset of $15 million which is dependent on future earnings of the Company as management considers it probable that taxable profits would be available against which such losses can be used.

Other comprehensive income

Other comprehensive income	12 Months Ended
	Dec. 31, 2023
Disclosure of analysis of other comprehensive income by item [abstract]
Other comprehensive income	Other comprehensive income (loss) Items that may subsequently be (millions) Change in unrealized fair value of cash flow hedges Cumulative foreign Accumulated Accumulated balance as at January 1, 2021 $ (51) $ 140 $ 89 Other comprehensive income (loss) Amount arising 41 (95) (54) Income taxes (1) — (1) Net 40 (95) (55) Accumulated balance as at December 31, 2021 $ (11) $ 45 $ 34 Other comprehensive income (loss) Amount arising 48 (89) (41) Income taxes (5) — (5) Net 43 (89) (46) Accumulated balance as at December 31, 2022 $ 32 $ (44) $ (12) Other comprehensive income (loss) Amount arising (29) 26 (3) Income taxes 2 — 2 Net $ (27) $ 26 $ (1) Accumulated balance as at December 31, 2023 $ 5 $ (18) $ (13)

Earnings per share

Earnings per share	12 Months Ended
	Dec. 31, 2023
Earnings per share [abstract]
Earnings per share	Earnings per share (a) Basic earnings per share Basic earnings per share is calculated by dividing net income by the total weighted average number of equity shares outstanding during the year. Years Ended December 31 (millions, except earnings per share) 2023 2022 2021 Net income $ 54 $ 183 $ 78 Weighted average number of equity shares outstanding 274 266 264 Basic earnings per share $ 0.20 $ 0.69 $ 0.30 (b) Diluted earnings per share Diluted earnings per share is calculated to give effect to the potential dilutive effect that could occur if additional equity shares were assumed to be issued under securities or instruments that may entitle their holders to obtain equity shares in the future, which include share-based compensation awards (see Note 6—Share-based compensation for additional details) and the provision for written put options (see Note 14(c)—Intangible assets and goodwill—Business acquisitions and Note 15—Provisions for additional details). The number of additional shares for inclusion in the diluted earnings per share calculation was determined using the treasury stock method and, for the provision for written put options, the if-converted method. Years Ended December 31 2023 2022 2021 Net income $ 54 $ 183 $ 78 After-tax impact of provisions for written put options (3) — — Fully diluted net income $ 51 $ 183 $ 78 Weighted average number of equity shares outstanding 274 266 264 Dilutive effect of share-based compensation 3 4 3 Dilutive effect of provisions for written put options 9 — — Weighted average number of diluted equity shares outstanding 286 270 267 Diluted earnings per share $ 0.18 $ 0.68 $ 0.29

Accounts receivable

Accounts receivable	12 Months Ended
	Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]
Accounts receivable	Accounts receivable (a) Accounts receivable As at (millions) 2023 2022 Accounts receivable – billed $ 278 $ 223 Accounts receivable – unbilled 194 201 Other receivables 28 5 500 429 Allowance for doubtful accounts (2) (1) Total $ 498 $ 428 The following table presents an analysis of the age of customer accounts receivable. Any late payment charges are levied at a negotiated rate on outstanding non-current customer account balances. As at (millions) 2023 2022 Customer accounts receivable – billed, net of allowance for doubtful accounts Less than 30 days past billing date $ 174 $ 154 30-60 days past billing date 78 44 61-90 days past billing date 11 12 More than 90 days past billing date 13 12 276 222 Accounts receivable – unbilled 194 201 Other receivables 28 5 Total $ 498 $ 428 We maintain allowances for lifetime expected credit losses related to doubtful accounts. Current economic conditions (including forward-looking macroeconomic data), historical information (including credit agency reports, if available), reasons for the accounts being past due and line of business from which the customer accounts receivable arose are all considered when determining whether to make allowances for past-due accounts. The same factors are considered when determining whether to write off amounts charged to the allowance for doubtful accounts against the customer accounts receivable. The doubtful accounts expense is calculated on a specific-identification basis for customer accounts receivable over a specific balance threshold and on a statistically derived allowance basis for the remainder. No customer accounts receivable balances are written off directly to bad debt expense. The following table presents a summary of the activity related to our allowance for doubtful accounts: Years Ended December 31 (millions) 2023 2022 Balance, beginning of year $ 1 $ 2 Additions 1 — Write-off — (1) Balance, end of year $ 2 $ 1

Financial instruments and manag

Financial instruments and management of financial risks	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about financial instruments [abstract]
Financial instruments and management of financial risks	Financial instruments and management of financial risks (a) Risks—overview Our financial instruments, and the nature of certain risks to which they may be subject, are as set out in the following table. Risks Market risks Financial instrument Accounting classification Credit Liquidity Currency Interest Measured at amortized cost Accounts receivable AC (1) X X Due from/to affiliated companies AC (1) X X Accounts payable and accrued liabilities AC (1) X X Provisions AC (1) X Long-term debt AC (1) X X Measured at fair value Cash and cash equivalents FVTPL (2) X X X Foreign exchange and interest rate derivatives (3) FVTPL/FVOCI (2) X X X X _________________________________________________ (1) For accounting recognition and measurement purposes, classified as amortized cost (AC). All such items, excluding our provisions for written put options, use other observable inputs (Level 2) for measuring fair value at the reporting date, while our provisions for written put options use unobservable inputs (Level 3). (2) For accounting recognition and measurement purposes, classified as fair value through net income (FVTPL). Unrealized changes in the fair values of financial instruments are included in net income unless the instrument is part of a cash flow hedging relationship. The effective portion of unrealized changes in the fair values of financial instruments held for hedging are included in other comprehensive income (FVOCI). (3) Use of derivative financial instruments is subject to a policy which requires that no derivative transaction is to be entered into for the purpose of establishing a speculative or leveraged position (the corollary being that all derivative transactions are to be entered into for risk management purposes only) and sets criteria for the credit worthiness of the transaction counterparties. (b) Credit risk Excluding credit risk, if any, arising from interest rate and currency swaps settled on a gross basis, the best representation of our maximum exposure (excluding income tax effects) to credit risk, which is a worst-case scenario and does not reflect results we expect, is as set out in the following table: As at December 31 (millions) 2023 2022 Cash and cash equivalents $ 127 $ 125 Accounts receivable 498 428 Due from affiliated companies 62 81 Derivative assets 16 32 $ 703 $ 666 Cash and cash equivalents Credit risk associated with cash and cash equivalents is managed by ensuring that these financial assets are placed with: governments; major financial institutions that have been accorded strong investment grade ratings by a primary rating agency; and/or other creditworthy counterparties. An ongoing review is performed to evaluate changes in the status of counterparties. Accounts receivable Credit risk associated with accounts receivable is managed through a program of credit evaluations of customers and limiting the amount of credit extended when deemed necessary. See Note 11—Accounts receivable for additional details of our accounts receivable balances. Derivative assets (and derivative liabilities) Counterparties to our foreign exchange derivatives are major financial institutions that have been accorded investment grade ratings by a primary credit rating agency. The total dollar amount of credit exposure under contracts with any one financial institution is limited and counterparties’ credit ratings are monitored. We do not give or receive collateral on swap agreements and hedging items due to our credit rating and those of our counterparties. While we are exposed to the risk of potential credit losses due to the possible non-performance of our counterparties, we consider this risk remote. Our derivative liabilities do not have credit risk-related contingent features. (c) Liquidity risk We manage liquidity risk by: • maintaining a syndicated bank credit facility ( Note 16(b)—Long-term debt—Credit facility ); • continuously monitoring forecast and actual cash flows; and • managing maturity profiles of financial assets and financial liabilities. Our debt maturities in future years are as disclosed in Note 16(d)—Long-term debt—Long-term debt maturities . We closely match the contractual maturities of our derivative financial liabilities with those of the risk exposures they are being used to manage. The expected maturities of our undiscounted financial liabilities do not differ significantly from the contractual maturities, other than as noted below. The contractual maturities of our undiscounted financial liabilities as at December 31, 2023, including interest thereon (where applicable), are as set out in the following tables: Non-derivative Derivative Composite long-term debt Currency swap Year (millions) Non- Due to affiliated companies (Note 21(a)) Long-term debt, excluding leases (1) (Note 16) Leases (Receive) Pay Interest rate swap agreement Total 2024 $ 292 $ 178 $ 169 $ 86 $ (146) $ 132 $ 2 $ 713 2025 19 — 164 78 (41) 34 — 254 2026 41 — 160 68 (39) 33 (1) 262 2027 131 — 155 52 (38) 32 (1) 331 2028 39 — 1,224 39 (342) 347 — 1,307 Thereafter — — — 80 — — — 80 Total $ 522 $ 178 $ 1,872 $ 403 $ (606) $ 578 $ — $ 2,947 _________________________________________________ (1) Future cash outflows in respect of associated interest and carrying costs for amounts drawn under our credit facilities (if any) have been calculated based upon the rates in effect at December 31, 2023. (d) Currency risk Our primary operating currency is the United States dollar. The European euro, Philippine peso and the Canadian dollar are the foreign currencies to which we currently have the largest exposure. Our foreign exchange risk management includes the use of foreign currency forward contracts to fix the exchange rates on short-term Philippine peso-denominated transactions and commitments, as well as swaps which are used to manage the currency risk associated with European euro denominated inflows being used against United States dollar denominated debt. (e) Interest rate risk Changes in market interest rates will cause fluctuations in the fair value or future cash flows of short-term investments, short-term obligations and long-term debt. Our cash equivalents generally have short maturities and fixed interest rates and as a result, their fair value will fluctuate with changes in market interest rates; absent monetization prior to maturity, the related future cash flows will not change due to changes in market interest rates. As short-term obligations arising from bilateral bank facilities, which typically have variable interest rates, are rarely outstanding for periods that exceed one calendar week, interest rate risk on these facilities are not significant. Amounts drawn on our long-term cr edit facility wil l be affected by changes in market interest rates in a manner similar to debts with short maturities in that the fair value is not materially affected by changes in market interest rates, but the associated cash flows representing interest payments are. We manage our exposure to changes in market interest rates with the use of interest rate swaps to fix the interest rates on the variable rate portion of our credit facility. (f) Market risk Net income and other comprehensive income for the years ended December 31, 2023, 2022 and 2021, could have varied if the United States dollar: Canadian dollar exchange rate, United States dollar: Philippine peso exchange rate, United States dollar: European euro exchange rate, market interest rates, and the TELUS Corporation and TELUS International (Cda) Inc. common share prices varied by reasonably possible amounts from their actual statement of financial position date amounts. The following sensitivity analysis of our exposure to foreign currency and interest rate risks at the reporting date has been determined based upon (i) a hypothetical change in foreign exchange rates taking place at the relevant statement of financial position date for the Canadian dollar, European euro and Philippine peso denominated balances and (ii) the hypothetical change in interest rates taking place at the beginning of the relevant fiscal year and being held constant through to the statement of financial position date, and the corresponding impact on that reporting period. Net income Other Comprehensive Years Ended December 31 (increase (decrease) in millions) 2023 2022 2021 2023 2022 2021 2023 2022 2021 Reasonably possible changes in market risks (1) 10% change in US$: CDN$ exchange rate US$ appreciates $ 10 $ 8 $ 14 $ — $ — $ — $ 10 $ 8 $ 14 US$ depreciates $ (12) $ (8) $ (14) $ — $ — $ — $ (12) $ (8) $ (14) 10% change in US$: Euro exchange rate US$ appreciates $ 7 $ 14 $ 11 $ (41) $ (44) $ (36) $ (34) $ (30) $ (25) US$ depreciates $ (7) $ (14) $ (11) $ 41 $ 44 $ 36 $ 34 $ 30 $ 25 10% change in US$: Peso exchange rate US$ appreciates $ (3) $ (2) $ (1) $ — $ — $ — $ (3) $ (2) $ (1) US$ depreciates $ 3 $ 2 $ 1 $ — $ — $ — $ 3 $ 2 $ 1 25 basis point change in market interest rate Rate increases $ (3) $ (1) $ (2) $ — $ — $ — $ (3) $ (1) $ (2) Rate decreases $ 3 $ 1 $ 2 $ — $ — $ — $ 3 $ 1 $ 2 _________________________________________________ (1) These sensitivities are hypothetical and should be used with caution. Changes in net income and/or other comprehensive income generally cannot be extrapolated because the relationship of the change in assumption to the change in net income and/or other comprehensive income may not be linear. In this table, the effect of a variation in a particular assumption on the amount of net income and/or other comprehensive income is calculated without changing any other factors; in reality, changes in one factor may result in changes in another, which might magnify or counteract the sensitivities. The sensitivity analysis assumes that we would realize the changes in exchange rates; in reality, the competitive marketplace in which we operate would have an effect on this assumption. No consideration has been made for a difference in the notional number of common shares associated with share-based compensation awards made during the reporting period that may have arisen due to a difference in the common share price. (2) To facilitate ongoing comparison of sensitivities, a constant variance of approximate magnitude has been used. (g) Fair values General The carrying values of cash and cash equivalents, due from/to affiliated companies, accounts receivable, accounts payable and accrued liabilities and certain provisions approximate their fair values due to the immediate or short-term maturity of these financial instruments. Our long-term debt, measured at amortized cost, approximates fair value as they bear interest at applicable market rates. The fair values of the derivative financial instruments we use to manage our exposure to currency risks are estimated based upon quoted market prices in active markets for the same or similar financial instruments or on the current rates offered to us for financial instruments of the same maturity, as well as discounted future cash flows determined using current rates for similar financial instruments subject to similar risks and maturities (such fair value estimates being largely based on the European euro: US$ and Philippine peso: US$ forward exchange rates as at the statement of financial position dates). Derivative The derivative financial instruments that we measure at fair value on a recurring basis subsequent to initial recognition are as set out in the following table; all such items use significant other observable inputs (Level 2) for measuring fair value at the reporting date. 2023 2022 As at December 31 (millions) Designation Maximum Notional Fair Price or Maximum Notional Fair Price or Current assets (1) Derivatives used to manage Currency risks arising from Euro business acquisition HFH 3 2024 $ 22 $ 12 USD:1.00 EUR:0.92 2023 $ 21 $ 19 USD:1.00 EUR:0.86 Currency risks arising from Philippine peso denominated purchases HFT 2 2024 $ 81 $ 2 USD:1.00PHP:56.32 2023 $ 53 $ — USD:1.00PHP:56.90 Interest rate risk associated with non-fixed rate credit facility amounts drawn HFH 3 2024 $ 9 $ 2 3.52% — $ — $ — — Non-current assets (1) Derivatives used to manage Currency risks arising from Euro business acquisition HFH 3 — $ — $ — — 2025 $ 341 $ 13 USD:1.00 EUR:0.86 Current liabilities (1) Derivatives used to manage Currency risks arising from Philippine peso denominated purchases HFT 2 2024 $ 17 $ — USD:1.00PHP:54.94 2023 $ 50 $ 1 USD:1.00PHP:53.55 Non-current liabilities (1) Derivatives used to manage Currency risks arising from Euro business acquisition HFH 3 2028 $ 409 $ 10 USD:1.00 EUR0.92 — $ — $ — — Interest rate risk associated with non-fixed rate credit facility amounts drawn HFH 3 2028 $ 155 $ 2 3.52% — $ — $ — — ______________________________________ (1) Notional amounts of derivative financial assets and liabilities are not set off. (2) Foreign currency hedges are designated as held for trading (HFT) upon initial recognition; hedge accounting is not applied. (3) Designated as held for hedging (HFH) upon initial recognition (cash flow hedging item); hedge accounting is applied. Unless otherwise noted, hedge ratio is 1:1 and is established by assessing the degree of matching between the notional amounts of hedging items and the notional amounts of the associated hedged items. (h) Recognition of derivative gains and losses The following table sets out the gains and losses, excluding income tax effects, arising from derivative instruments that are classified as cash flow hedging items and their location within the Consolidated statements of income and other comprehensive income. Credit risk associated with such derivative instruments, as discussed further in (b) , would be the primary source of hedge ineffectiveness. There was no ineffective portion of derivative instruments classified as cash flow hedging items for the periods presented. Amount of gain (loss) Gain (loss) reclassified from other Amount Amount Years Ended December 31 (millions) 2023 2022 2021 Location 2023 2022 2021 Derivatives used to manage interest rate risk Associated with non-fixed rate credit facility amounts drawn $ 2 $ 1 $ — Interest expense $ 2 $ (1) $ (3) $ 2 $ 1 $ — $ 2 $ (1) $ (3) Derivatives used to manage currency risks Arising from net investment in foreign operation $ (29) $ 37 $ 38 Foreign exchange $ — $ (9) $ — $ (27) $ 38 $ 38 $ 2 $ (10) $ (3)

Property, plant and equipment

Property, plant and equipment	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [abstract]
Property, plant and equipment	Property, plant and equipment Owned Assets Right-of- (millions) Network assets Buildings and Computer equipment, furniture, and other Assets Total Buildings Total At cost As at January 1, 2022 $ 48 $ 119 $ 231 $ 26 $ 424 $ 317 $ 741 Additions 1 8 22 61 92 87 179 Additions from acquisition — 2 1 — 3 2 5 Dispositions, retirements and other (1) (8) (15) — (24) (11) (35) Transfers 3 22 27 (52) — — — Foreign exchange (2) (5) (9) (2) (18) (10) (28) As at December 31, 2022 $ 49 $ 138 $ 257 $ 33 $ 477 $ 385 $ 862 Additions 3 3 19 54 79 92 171 Additions from acquisition 14(c) — 10 5 — 15 19 34 Dispositions, retirements and other — (1) (9) — (10) (13) (23) Transfers 7 8 35 (50) — — — Foreign exchange — 1 1 — 2 4 6 As at December 31, 2023 $ 59 $ 159 $ 308 $ 37 $ 563 $ 487 $ 1,050 Accumulated depreciation As at January 1, 2022 $ 26 $ 45 $ 138 $ — $ 209 $ 127 336 Depreciation 7 17 43 — 67 57 124 Dispositions, retirements and other (1) (8) (15) — (24) (11) (35) Foreign exchange (1) (1) (6) — (8) (4) (12) As at December 31, 2022 $ 31 $ 53 $ 160 $ — $ 244 $ 169 $ 413 Depreciation 8 22 46 — 76 65 141 Dispositions, retirements and other — (1) (9) — (10) (13) (23) Foreign exchange — 1 — — 1 1 2 As at December 31, 2023 $ 39 $ 75 $ 197 $ — $ 311 $ 222 $ 533 Net Book Value As at December 31, 2022 $ 18 $ 85 $ 97 $ 33 $ 233 $ 216 $ 449 As at December 31, 2023 $ 20 $ 84 $ 111 $ 37 $ 252 $ 265 $ 517

Intangible assets and goodwill

Intangible assets and goodwill	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about intangible assets [abstract]
Intangible assets and goodwill	Intangible assets and goodwill (a) Intangible assets and goodwill Intangible assets subject to amortization (millions) Note Customer Crowdsource assets Software Brand and other Total Goodwill Total At cost As at January 1, 2022 $ 1,182 $ 120 $ 57 $ 37 $ 1,396 $ 1,380 $ 2,776 Additions — — 12 — 12 — 12 Additions from acquisition — — — — — 9 9 Dispositions and other — — (11) — (11) — (11) Foreign exchange (31) — (1) (2) (34) (39) (73) As at December 31, 2022 $ 1,151 $ 120 $ 57 $ 35 $ 1,363 $ 1,350 $ 2,713 Additions — — 14 — 14 — 14 Additions from acquisition 14(c) 602 — — 92 694 599 1,293 Dispositions and other — — (9) (25) (34) — (34) Foreign exchange 16 — 1 2 19 14 33 As at December 31, 2023 $ 1,769 $ 120 $ 63 $ 104 $ 2,056 $ 1,963 $ 4,019 Accumulated amortization As at January 1, 2022 $ 173 $ 15 $ 31 $ 19 $ 238 $ — $ 238 Amortization 96 15 13 10 134 — 134 Dispositions and other — — (11) — (11) — (11) Foreign exchange (5) — — (1) (6) — (6) As at December 31, 2022 $ 264 $ 30 $ 33 $ 28 $ 355 $ — $ 355 Amortization 138 15 9 21 183 — 183 Dispositions and other — — (9) (25) (34) — (34) Foreign exchange 5 — — 1 6 — 6 As at December 31, 2023 $ 407 $ 45 $ 33 $ 25 $ 510 $ — $ 510 Net book value As at December 31, 2022 $ 887 $ 90 $ 24 $ 7 $ 1,008 $ 1,350 $ 2,358 As at December 31, 2023 $ 1,362 $ 75 $ 30 $ 79 $ 1,546 $ 1,963 $ 3,509 (b) Impairment testing of goodwill Goodwill is tested for impairment annually or more frequently if events or circumstances indicate that the asset may be impaired. We perform our goodwill impairment test annually as at October 1, in accordance with our policy in Note 1(g)—Summary of material accounting policies—Depreciation, amortization and impairment . Goodwill impairment is tested at the lowest cash-generating unit (CGU) that goodwill is monitored. On this basis, we have determined that each geographic area in which we operate is insufficiently distinct and is not considered to be an individual cash generating unit, and our combined operations are considered to represent a single CGU. In assessing goodwill for impairment, we compare the carrying value of our CGU to its recoverable amount, determined using a value-in-use method. There is a material degree of uncertainty with respect to the estimate of the recoverable amount, given the necessity of making key economic assumptions about the future. As such, we validate our recoverable amount calculations using market-comparable measures and perform an analytical review of industry facts and facts that are specific to us. For the years ended December 31, 2023, 2022 and 2021, no goodwill impairment was recorded. Methodology and key assumptions The value-in-use calculation uses discounted cash flow projections, including the following key assumptions: future cash flows and growth projections; associated economic risk assumptions and estimates of the likelihood of achieving key operating metrics and drivers; estimates of future capital expenditures; and the future weighted average cost of capital. We considered a range of reasonably possible amounts to use for key assumptions and selected amounts that best represent management’s estimates of current and future market conditions. The key assumptions for cash flow projections were based upon our approved financial forecasts, which span a period of five years and were discounted at a po st-tax notional rate of 9.8% (2022 - 9.5%; 2021 - 9.0%). These cash flow projections incorporate established corporate targets with respect to operational net carbon neutrality, renewable energy, energy efficiency and waste reduction. For impairment testing valuations, cash flows subsequent to the five-year projection period were extrapolated using a perpetual growth rate of 3.0% (2022 - 3.0%; 2021 - 3.0%); these growth rates do not exceed the long-term average growth rates observed in the markets in whi ch we operate. We believe that any reasonably possible change in the key assumptions on which the calculation of the recoverable amounts would not cause the CGU’s carrying value to exceed its recoverable amount. If the future were to adversely differ from management’s best estimates for the key assumptions and associated cash flows were to be materially adversely affected, we could potentially experience future material impairment charges in respect of our goodwill. (c) Business acquisitions WillowTree On January 3, 2023, we acquired 86% of the equity interest of WillowTree, a full-service digital product provider focused on end user experiences, such as native mobile applications and unified web interfaces. Certain WillowTree management team members retained approximately 14% of the total equity interest in WillowTree, and were granted written put options related to this retained equity interest that are exercisable in tranches over a three-year period beginning in 2026. These written put options are subject to certain performance-based criteria tied to the WillowTree business, including compounded annual revenue growth rate and cumulative gross margin targets, and may be settled in cash or, at our option, a combination of cash and up to 70% in TELUS International subordinate voting shares. Concurrent with this acquisition, WillowTree management team members provided us with purchase call options, which substantial ly mirror the written put options. As a result of these purchase call options and written put options, we determined that the non-controlling interest held by the WillowTree management team members would be recognized as a financial liability in the form of provisions for the written put options. The provisions for the written put options were measured at the date of acquisition based on the present value of the estimated future redemption amounts. The total purchase consideration for WillowTree was $1,175 million, net of assumed debt of WillowTree, comprising of $856 million in cash, $125 million of our subordinate voting shares, and $194 million in provisions for the written put options. Transaction costs for the acquisition were expensed as incurred. The acquisition of WillowTree qualified as a business combination and was accounted for using the acquisition method of accounting. Accordingly, the results of WillowTree have been included in our consolidated financial statements from the date of acquisition on January 3, 2023. The acquisition brings key talent and diversity to our portfolio of next generation solutions, and further augments our digital consulting and client-centric software development capabilities. The primary factor that gives rise to the recognition of goodwill on this acquisition was the earnings capacity of the acquired business in excess of the net tangible and intangible assets acquired (such excess arising from the low level of tangible assets relative to the earnings capacity of the business). The portion of the amount assigned to goodwill that is deductible for income tax purposes was $97 million. As at December 31, 2023, we have finalized the acquisition purchase price allocation. During the year ended December 31, 2023, WillowTree generated revenue of $186 million and net loss of $93 million, which included amortization of intangible assets and interest expense on incremental borrowings on our credit facility, both arising from this transaction. As the acquisition closed on January 3, 2023, had the acquisition closed on January 1, 2023, our consolidated revenue and net income would have been the same. Other acquisitions During the year ended December 31, 2023, we completed the acquisition of two businesses which expanded our customer experience operations into Morocco and South Africa, for total purchase consideration of $2 million (comprised of $1 million cash and $1 million in provisions), in exchange for net identifiable assets of $2 million. No goodwill was recognized on these transactions. As part of these acquisitions, we provided performance earn-outs to certain employees, subject to continued employment, with a maximum payout of approximately $12 million and payable in fiscal 2025, which may be settled in cash or, at our option, TELUS International subordinate voting shares (see Note 6(c)—Share-based compensation—Other ). During the year ended December 31, 2023, other acquisitions generated revenue of $4 million and net income was $nil. Had the acquisitions closed on January 1, 2023, during the year ended December 31, 2023, revenue would have increased by $1 million and net income would have been the same. Acquisition-date fair values Acquisition-date fair values assigned to the assets acquired and liabilities assumed are set out in the following table: (millions) WillowTree Other Total Assets Current assets Cash $ 5 $ — $ 5 Accounts receivable 62 1 63 Prepaid and other assets 3 — 3 70 1 71 Non-current assets Property, plant and equipment Owned assets 15 — 15 Right-of-use lease assets 19 — 19 Intangible assets subject to amortization (1) 692 2 694 726 2 728 Total identifiable assets acquired 796 3 799 Liabilities Current liabilities Accounts payable and accrued liabilities 43 — 43 Income and other taxes payable 1 — 1 Current maturities of long-term debt 91 1 92 135 1 136 Non-current liabilities Long-term debt 16 — 16 Deferred income taxes 69 — 69 85 — 85 Total liabilities assumed 220 1 221 Net identifiable assets acquired 576 2 578 Goodwill 599 — 599 Net assets acquired $ 1,175 $ 2 $ 1,177 Acquisition effected by way of: — Cash $ 856 $ 1 $ 857 Provisions (2) 194 1 195 Subordinate voting shares (3) 125 — 125 $ 1,175 $ 2 $ 1,177 ______________________________________________ (1) Customer relationships are generally expected to be amortized over a period of 15 years; brand and other intangible assets recognized are expected to be amortized over a period of three (2) Provisions recognized in the WillowTree acquisition were in connection with the written put options granted to certain members of the WillowTree management team. (3) The fair value of TELUS International subordinate voting shares was measured based upon market prices observed at the date of acquisition of control.

Provisions

Provisions	12 Months Ended
	Dec. 31, 2023
Disclosure of other provisions [abstract]
Provisions	Provisions (millions) Employee related (1) Written put options (2) Other (3) Total As at January 1, 2022 $ — $ — $ 5 $ 5 Reversals — — (2) (2) As at December 31, 2022 $ — $ — $ 3 $ 3 Current — — 1 1 Non-current — — 2 2 As at December 31, 2022 $ — $ — $ 3 $ 3 As at January 1, 2023 $ — $ — $ 3 $ 3 Additions 14 194 2 210 Use (11) — — (11) Reversals (2) — (1) (3) Revaluations — (20) — (20) Interest effect and other — 14 — 14 As at December 31, 2023 $ 1 $ 188 $ 4 $ 193 Current 1 — 1 2 Non-current — 188 3 191 As at December 31, 2023 $ 1 $ 188 $ 4 $ 193 ______________________________________________ (1) Related to personnel-related reorganization charges. (2) In connection with our acquisition of WillowTree, a provision for written put options to acquire the non-controlling interest in the WillowTree business retained by certain members of WillowTree management was established, measured at the present value of the estimated redemption amount (see Note 14(c)—Intangible assets and goodwill—Business acquisitions ). During the year ended December 31, 2023, we revised our estimates of certain performance-based criteria tied to the WillowTree business, which resulted in a reduction of the written put option provision by $20 million, included in Changes in business combination-related provisions in our consolidated statements of income and comprehensive income. (3) Other provisions generally relate to legal and other activities that arise during the normal course of operations.

Long-term debt

Long-term debt	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about borrowings [abstract]
Long-term debt	Long-term debt (a) Details of long-term debt As at December 31 (millions) Note 2023 2022 Credit facility (b) $ 1,463 $ 742 Deferred debt transaction costs (11) (14) 1,452 728 Lease liabilities (c) 298 236 Long-term debt $ 1,750 $ 964 Current 122 83 Non-current 1,628 881 Long-term debt $ 1,750 $ 964 (b) Credit facility 2023 2022 As at December 31 (millions) Revolving Term loan component (1) Total Revolving Term loan component (1) Total Available $ 492 N/A $ 492 $ 658 $ 600 $ 1,258 Outstanding Due to TELUS Corporation $ 22 $ 83 $ 105 $ 10 $ 43 $ 53 Due to Other 286 1,072 1,358 132 557 689 $ 308 $ 1,155 $ 1,463 $ 142 $ 600 $ 742 Total $ 800 $ 1,155 $ 1,955 $ 800 $ 1,200 $ 2,000 _________________________________________________ (1) In the first quarter of 2023, we entered into a receive-floating interest rate, pay-fixed interest rate exchange agreement that effectively converts a portion of our interest obligations on the debt to a fixed rate of 3.52% (2022 - N/A) plus applicable margins. In connection with our acquisition of WillowTree on January 3, 2023, (see Note 14(c)—Intangible assets and goodwill—Business acquisitions ), we amended and expanded our existing credit facility to an aggregate $2.0 billion credit facility, consisting of an $800 million revolving credit facility and an amortizing $1.2 billion term loan. The amended credit facility is secured by our assets with a syndicate of financial institutions, which includes TELUS Corporation as a lender, maturing on January 3, 2028. Upon closing this acquisition, we borrowed an aggregate of $963 million on the amended credit facility (comprised of $363 million from the revolving credit facility and $600 million from the term loan), to partially fund the WillowTree acquisition, repay a portion of long-term debt assumed in the transaction, and settle certain transaction costs incurred by WillowTree. As at December 31, 2023, the revolving and term loan components had an effective interest rate of 7.46% (December 31, 2022 - 6.67%). The amended credit facility bears interest at prime rate, U.S. dollar base rate, a bankers’ acceptance rate or Term Secured Overnight Financing Rate (SOFR) (all such terms as used or defined in the amended credit facility) plus applicable margins. The amended credit facility contains customary representations, warranties and covenants, including two financial quarter-end ratio tests. Net Debt to Adjusted EBITDA ratio, both measures as defined in our credit agreement, must not exceed 4.25:1.00 for each quarter in fiscal 2023, 3.75:1.00 for each quarter in fiscal 2024 and 3.25:1.00 subsequently. The Adjusted EBITDA to Debt Service (interest and scheduled principal repayment) ratio must not be less than 1.50:1.00, all as defined in the credit facility. If an acquisition with an aggregate cash consideration in excess of $250 million occurs in any twelve-month period, the maximum permitted Net Debt to Adjusted EBITDA ratio per credit agreement may be increased by 0.50:1.00 and shall return to the then applicable Net Debt to Adjusted EBITDA ratio after eight fiscal quarters. The term loan of the amended credit facility is subject to an amortization schedule requiring that 1.25% of the original principal advanced be repaid each quarter beginning on June 30, 2023, with the balance due at maturity of the amended credit facility on January 3, 2028. As at December 31, 2023 and 2022, we were in compliance with all financial covenants, financial ratios and all of the terms and conditions of our amended credit facility and long-term debt agreement. (c) Lease liabilities Leases are subject to amortization schedules, which results in the principal being repaid over various periods, including reasonably expected renewals. The weighted average interest rate on lease liabilities was approximately 9.87% as at December 31, 2023. (d) Long-term debt maturities Anticipated requirements to meet long-term debt repayments, calculated upon such long-term debts owing as at Composite long-term debt denominated in U.S dollars European euros Other currencies Years ending December 31 (millions) Long-term Leases Total Leases Leases Total 2024 $ 60 $ 18 $ 78 $ 16 $ 24 $ 118 2025 60 19 79 15 22 116 2026 60 19 79 10 20 109 2027 60 16 76 5 18 99 2028 1,223 10 1,233 4 15 1,252 Thereafter — 24 24 27 16 67 Future cash outflows in respect of 1,463 106 1,569 77 115 1,761 Future cash outflows in respect of associated interest and like carrying costs (1) 409 54 463 16 35 514 Undiscounted contractual maturities $ 1,872 $ 160 $ 2,032 $ 93 $ 150 $ 2,275 _________________________________________________ (1) Future cash outflows in respect of associated interest and carrying costs for amounts drawn under our amended credit facility (if any) have been calculated based upon the rates in effect at December 31, 2023.

Share capital

Share capital	12 Months Ended
	Dec. 31, 2023
Disclosure of classes of share capital [abstract]
Share capital	Share capital In connection with our IPO on February 3, 2021, TELUS Corporation, our controlling shareholder, exchanged its outstanding Class A, Class C and Class D shares for Class B shares. Each other holder of Class C and Class D shares exchanged their shares for Class E shares. Our Class B shares, which were then only held by TELUS Corporation and Baring Private Equity Asia, a non-controlling shareholder, were redesignated as multiple voting shares and our Class E shares were redesignated as subordinate voting shares. In 2022, BPEA EQT (BPEA) was formed as a result of the combination of Baring Private Equity Asia and EQT Asia. The rights of the holders of our multiple voting shares and subordinate voting shares are substantially identical, except subordinate voting shares have one vote per share and multiple voting shares have 10 votes per share. Concurrent with the redesignations, we eliminated all of our previously outstanding series of Class A, Class C and Class D shares and our authorized Class A and Class B preferred shares. Subsequent to the IPO, our equity shares were comprised only of subordinate voting shares and multiple voting shares. Subsequent to the share redesignations, we effected a 4.5-for-1 split of each of our outstanding multiple voting shares and subordinate voting shares. In all instances, unless otherwise indicated, the number of equity shares authorized, the number of equity shares outstanding, the number of equity shares reserved, per share amounts and share-based compensation information in these consolidated financial statements have been restated to reflect the impact of the 4.5-for-1 split. In connection with our IPO, we issued 21 million subordinate voting shares at $25.00 per share, for gross proceeds of $525 million and net proceeds of $500 million (net of share issuance costs of $34 million, which included underwriting fees and offering expenses, offset by deferred taxes of $9 million). TELUS Corporation and BPEA also sold 22 million subordinated voting shares in the IPO at the same price, which were issued following the conversion by them of an aggregate 22 million multiple voting shares. In the third quarter of 2021, we completed a secondary offering of 17 million subordinate voting shares at $34.00 per share on behalf of certain non-controlling shareholders of TELUS International, including BPEA. In connection with this secondary offering, 14 million multiple voting shares of BPEA were converted to subordinate voting shares and sold. Neither TELUS International nor TELUS Corporation sold any subordinate voting shares in this secondary offering and did not receive any proceeds from the sale of the subordinate voting shares by the selling shareholders. On January 3, 2023, we issued 6 million of subordinate voting shares in connection with our acquisition of WillowTree (see Note 14(c)—Intangible assets and goodwill—Business acquisitions ). On December 20, 2023, BPEA converted 33 million multiple voting shares to an equal number of subordinate voting shares. After the conversion, BPEA held multiple voting shares and subordinate voting shares representing approximately 10.5% of combined voting power. Our authorized and issued share capital as at December 31, 2023, was as follows: Authorized Issued As at December 31 (millions) 2023 2022 2021 2023 2022 2021 Preferred Shares unlimited unlimited unlimited — — — Equity Shares Class A n/a n/a unlimited n/a n/a n/a Class B, redesignated as Multiple Voting Shares unlimited unlimited unlimited 167 200 200 Class C n/a n/a unlimited n/a n/a n/a Class D n/a n/a unlimited n/a n/a n/a Class E, redesignated as Subordinate Voting Shares unlimited unlimited unlimited 107 67 66 As at December 31, 2023, there were 17 million authorized but unissued subordinate voting shares reserved for issuance under our share-based compensation plans, and 5 million authorized but unissued subordinate voting shares reserved for issuance under our employee share purchase plan.

Contingent liabilities

Contingent liabilities	12 Months Ended
	Dec. 31, 2023
Disclosure of contingent liabilities [abstract]
Contingent liabilities	Contingent liabilities (a) Indemnification obligations In the normal course of operations, we provide indemnification in conjunction with certain transactions. The terms of these indemnification obligations range in duration. These indemnifications would require us to compensate the indemnified parties for costs incurred as a result of failure to comply with contractual obligations or litigation claims or statutory sanctions or damages that may be suffered by an indemnified party. In some cases, there is no maximum limit on these indemnification obligations. The overall maximum amount of an indemnification obligation will depend on future events and conditions and therefore cannot be reasonably estimated. Where appropriate, an indemnification obligation is recorded as a liability. Other than obligations recorded as liabilities at the time of such transactions, historically we have not made significant payments under these indemnifications. As at December 31, 2023 and 2022, we had no liability recorded in respect of indemnification obligations. (b) Claims and lawsuits We are party to various legal proceedings and claims that arise in the ordinary course of business. The ultimate outcome of these matters is inherently uncertain. Therefore, if one or more of these matters were resolved against us for amounts in excess of management's estimates of loss, or if any outcome becomes more likely than not and estimable, our results of operations and financial condition could be adversely affected.

Employee future benefits

Employee future benefits	12 Months Ended
	Dec. 31, 2023
Employee future benefits
Employee future benefits	Employee future benefits Defined contribution pension plans We have a number of defined contribution retirement plans providing pension and other post-employment benefits to our employees. Employees in most of our foreign subsidiaries are covered by government mandated, defined contribution plans. Employees generally become eligible to participate in these plans after six months of employment and the Company may make discretionary contributions under the plans. We offer defined contribution pension plans in certain regions, which are contributory and generally voluntary, and these are the pension plans that we sponsor and are available to our employees. Generally, employees can make contributions up to a maximum amount, and we matched up to 100% of the contributions based on plan limits. See Note 5—Salaries and benefits for defined contribution pension expense included in Salaries & benefits in the consolidated statements of income and comprehensive income. Defined benefit pension plans We have a small number of Canadian employees who participate in a TELUS Corporation defined benefit plan, and the associated cost related to TELUS International employees is charged to us by TELUS Corporation. For the years ended December 31, 2023, 2022 and 2021, we recognized defined benefit pension expense of $2 million, $2 million and $1 million included in Salaries & benefits in the consolidated statements of income and comprehensive income. In addition, we have non-contributory supplementary retirement benefit plans, which have the effect of maintaining the earned pension benefit once the allowable maximums in the registered plans are attained. As is common with non-registered plans of this nature, these plans are typically funded only as benefits are paid. For the years ended December 31, 2023, 2022 and 2021, we recognized defined benefit pension expense included in Salaries & benefits of $2 million, $nil and $1 million, respectively. As at December 31, 2023, 2022 and 2021, our recognized pension obligation was $14 million, $9 million and $11 million, respectively, included in Other long-term liabilities in the consolidated statement of financial position.

Leases

Leases	12 Months Ended
	Dec. 31, 2023
Disclosure of quantitative information about leases for lessee [abstract]
Leases	Leases Our leases are comprised primarily of real estate leases for office purposes. Estimates of the expected lease terms include our expectations or intentions to exercise option renewal periods, which affect the measurement of right-of-use lease assets and their associated lease liabilities. Maturity analyses of lease liabilities are set out in Note 12(c)—Financial instruments and management of financial risks—Liquidity risk and Note 16(d)—Long-term debt—Long-term debt maturities ; interest expense on our lease liabilities is set out in Note 7—Interest expense . The additions to, the depreciation charges for, and the carrying amount of, right-of-use lease assets are set out in Note 13—Property, plant and equipment . The payments are set out in Note 22(d)—Additional financial information—Changes in liabilities arising from financing activities.

Related party transactions

Related party transactions	12 Months Ended
	Dec. 31, 2023
Disclosure of transactions between related parties [abstract]
Related party transactions	Related party transactions (a) Transactions with TELUS Corporation General TELUS Corporation produces consolidated financial statements available for public use and is the ultimate parent and controlling party of TELUS International. Recurring transactions TELUS Corporation and its subsidiaries receive customer care, integrated business process outsourcing, information technology outsourcing, and digital product development services from us, and provide services (including people, network, finance, communications, and regulatory) to us. We also participate in defined benefit pension plans that share risks between TELUS Corporation and its subsidiaries. 2023 2022 2021 As at, or Year Ended December 31 (millions) TELUS Subsidiaries Total TELUS Subsidiaries Total TELUS Subsidiaries Total Transactions with TELUS Corporation and subsidiaries Revenues from services provided to $ — $ 559 $ 559 $ — $ 428 $ 428 $ — $ 353 $ 353 Goods and services purchased from — (28) (28) — (33) (33) — (30) (30) — 531 531 — 395 395 — 323 323 Receipts from related parties — (600) (600) — (417) (417) — (339) (339) Payments to related parties — 28 28 1 32 33 20 — 20 Payments (made) collected by related parties on our behalf and other adjustments (1) (62) 15 (47) (50) 25 (25) (91) 53 (38) Foreign exchange 2 — 2 2 — 2 — (2) (2) Change in balance (60) (26) (86) (47) 35 (12) (71) 35 (36) Accounts with TELUS Corporation and subsidiaries Balance, beginning of year (91) 61 (30) (44) 26 (18) 27 (9) 18 Balance, end of year $ (151) $ 35 $ (116) $ (91) $ 61 $ (30) $ (44) $ 26 $ (18) Accounts with TELUS Corporation and subsidiaries Due from $ 20 $ 42 $ 62 $ 8 $ 73 $ 81 $ — $ 53 $ 53 Due to $ (171) $ (7) $ (178) $ (99) $ (12) $ (111) $ (44) $ (27) $ (71) $ (151) $ 35 $ (116) $ (91) $ 61 $ (30) $ (44) $ 26 $ (18) ______________________________________________ (1) Certain key management personnel at TELUS International participate in the Pension Plan for Management and Professional Employees of TELUS Corporation , a defined benefit pension plan. During the year ended December 31, 2023, TELUS Corporation incurred CAD$2 million (December 31, 2022 and 2021 - CAD$2 million and $nil, respectively) for these individuals, which are excluded from the table above. In the consolidated statement of financial position, amounts due from affiliates and amounts due to affiliates are generally due 30 days from billing and are cash-settled on a gross basis. In January 2021, we renewed our master service agreement with TELUS Corporation, which provides for a term of 10 years beginning in January 2021 and a minimum annual spend of $200 million, subject to adjustment in accordance with its terms. Other transactions Immediately prior to the Company’s IPO on February 3, 2021, all Class A, Class C, and Class D common shares held by TELUS Corporation were exchanged for Class B common shares, and these Class B common shares were then redesignated as multiple voting shares. Subsequent to such redesignations, we effected a 4.5-for-1 split of each of our outstanding multiple voting shares. On a post-split basis, TELUS Corporation held 153 million multiple voting shares of TELUS International. On February 3, 2021, and in connection with the Company’s IPO, TELUS Corporation converted 7 million of our multiple voting shares to subordinate voting shares that were sold to new investors in the initial public offering. In the fourth quarter of 2022, we acquired certain call centre operations of TELUS Corporation for cash consideration of $1 million (net of cash assumed), in exchange for $2 million of net identifiable assets and $9 million of goodwill. This acquisition was accounted for as a common control business acquisition using the predecessor accounting method. The amount of net assets and goodwill acquired in excess of the fair value of consideration paid was recorded to contributed surplus in the consolidated statements of changes in owners’ equity. (b) Transactions with BPEA EQT Shareholders’ Agreement On March 9, 2023, we, TELUS and BPEA amended our shareholders’ agreement to eliminate initial post-IPO transition requirements, remove BPEA’s rights regarding the nomination of directors and appointment of observers to our Board and confirm TELUS Corporation’s and the Company’s rights to nominate individuals to serve on our Board. The parties further amended the shareholders’ agreement on December 16, 2023, to revise the terms of the TELUS right of first offer, pursuant to which BPEA agreed not to, under certain circumstances, sell or transfer their shares in TELUS International without first providing TELUS with a right to purchase such shares. In connection with the conversion by BPEA, on December 21, 2023, we amended the registration rights agreement with, among others, BPEA, to, among other things, remove certain piggyback rights previously provided to BPEA. Recurring transactions During the years ended December 31, 2023 and 2022, there were no recurring transactions with BPEA. Other transactions Immediately prior to the Company’s IPO on February 3, 2021, all Class B common shares held by BPEA were redesignated as multiple voting shares. Subsequent to such redesignations, we effected a 4.5-for-1 split of each of our outstanding multiple voting shares. On a post-split basis, BPEA held 82 million multiple voting shares of TELUS International. In connection with the Company’s IPO, BPEA converted 15 million of our multiple voting shares to subordinate voting shares that were sold to new investors in the initial public offering. On September 28, 2021, BPEA converted 14 million of our multiple voting shares to subordinate voting shares that were sold to new investors in a secondary public offering. On December 20, 2023, BPEA converted approximately 33 million multiple voting shares to an equal number of subordinate voting shares. At the time of conversion, there were no amounts receivable from or payable to BPEA. After the conversion, BPEA held multiple voting shares and subordinate voting shares representing approximately 10.5% of combined voting power, and thus was no longer considered a related party with significant influence over TELUS International. (c) Transactions with key management personnel Our key management personnel have the authority and responsibility for overseeing, planning, directing and controlling our activities and consist of our Board and members of our executive leadership team. Total compensation expense and its composition for the key management personnel is as follows: Years Ended December 31 (millions) 2023 2022 2021 Short-term benefits $ 5 $ 7 $ 5 Post-employment pension (1) and other benefits $ 2 $ 1 $ 1 Share-based compensation (2) $ 11 $ 11 $ 43 _________________________________________________ (1) Certain members of our executive leadership team participate in our Pension Plan for Management and Professional Employees of TELUS Corporation and certain other non-registered, non-contributory supplementary defined benefit pension plans. (2) In 2023, we awarded 458,854 RSUs and 322,984 PSUs to our key management personnel, with a grant-date fair value of $9 million and $7 million, respectively. In 2022, we awarded 301,190 RSUs and 229,627 PSUs to our key management personnel, with a grant-date fair value of $8 million and $6 million, respectively. In 2021, we awarded 863,755 RSUs, 192,064 PSUs, 579,949 Share Options, and 24,757 Phantom TELUS Corporation RSUs to our key management personnel, with a grant-date fair value of $22 million, $6 million, $3 million and $1 million, respectively. Employment agreements with members of the key management personnel typically provide for severance payments if an executive’s employment is terminated without cause: generally, 12 to 18 months of base salary and performance bonus, benefits and accrual of pension service in lieu of notice. In the event of a change in control, executive leadership team members are not entitled to treatment any different than that given to our other employees with respect to non-vested share-based compensation.

Additional financial informatio

Additional financial information	12 Months Ended
	Dec. 31, 2023
Additional financial information
Additional financial information	Additional financial information (a) Statements of income and other comprehensive income For the years ended December 31, 2023, 2022 and 2021, three clients each accounted for more than 10% of our revenues. TELUS Corporation, our controlling shareholder and largest client for the year ended December 31, 2023, accounted for approximately 20.6%, 17.3% and 16.1% of our revenue for the years ended December 31, 2023, 2022 and 2021, respectively. Our second largest client for the year ended December 31, 2023, Google, accounted for approximately 13.1%, 11.9% and 11.0% of our revenue for the years ended December 31, 2023, 2022 and 2021, respectively. Our third largest client for the year ended December 31, 2023, a leading social media company, accounted for 11.2%, 15.8% and 17.7% of our revenue for the years ended December 31, 2023, 2022 and 2021, respectively. (b) Statements of financial position As at December 31 (millions) 2023 2022 Other long-term assets Prepaid lease deposits and other $ 21 $ 20 Other 4 7 $ 25 $ 27 Accounts payable and accrued liabilities Trade accounts payable $ 37 $ 39 Accrued liabilities 103 110 Payroll and other employee-related liabilities 135 129 Advance billings 4 5 Other 11 6 $ 290 $ 289 (c) Statements of cash flows—operating activities and investing activities Years Ended December 31 (millions) 2023 2022 2021 Net change in non-cash operating working capital Accounts receivable $ 3 $ (26) $ (124) Due to and from affiliated companies, net 86 17 36 Prepaid expenses — 6 (13) Other long-term assets 2 6 1 Accounts payable and accrued liabilities (45) (27) 56 Income and other taxes receivable and payable, net (2) (1) (10) Advance billings and customer deposits — — — Provisions 2 — — Other long-term liabilities (3) (1) (15) $ 43 $ (26) $ (69) Cash payments for capital assets Capital asset additions Capital expenditures Property, plant and equipment, excluding right-of-use assets $ (79) $ (92) $ (93) Intangible assets (14) (12) (8) (93) (104) (101) Change in associated non-cash investing working capital 4 (1) 2 $ (89) $ (105) $ (99) (d) Changes in liabilities arising from financing activities Statements of cash flows Non-cash changes Year Ended December 31, 2023 (millions) Beginning Issued Redemptions, Foreign Other End of Long-term debt Credit facility $ 742 $ 1,161 $ (440) $ — $ — $ 1,463 Debt assumed from acquisitions — — (89) — 89 — Lease liabilities 236 — (84) 9 137 298 Deferred debt transaction costs (14) — — — 3 (11) $ 964 $ 1,161 $ (613) $ 9 $ 229 $ 1,750 Statements of cash flows Non-cash changes Year Ended December 31, 2022 (millions) Beginning of year Issued or Redemptions, Foreign exchange movement Other End of Long-term debt Credit facility $ 941 $ 411 $ (610) $ — $ — $ 742 Lease liabilities 215 — (72) (7) 100 236 Deferred debt transaction costs (8) — (8) — 2 (14) $ 1,148 $ 411 $ (690) $ (7) $ 102 $ 964 Statements of cash flows Non-cash changes Year Ended December 31, 2021 (millions) Beginning Issued or Redemptions, Foreign exchange movement Other End of Long-term debt Credit facility $ 1,568 $ 71 $ (698) $ — $ — $ 941 Lease liabilities 209 — (67) (3) 76 215 Deferred debt transaction costs (11) — — — 3 (8) $ 1,766 $ 71 $ (765) $ (3) $ 79 $ 1,148

Segment reporting

Segment reporting	12 Months Ended
	Dec. 31, 2023
Disclosure of operating segments [abstract]
Segment reporting	Segment reporting Operating segments are components of an entity that engage in business activities from which they earn revenues and incur expenses (including revenues and expenses related to transactions with the other entities within the group). We assess our operating segments based on information regularly provided to and reviewed by the Chief Operating Decision Maker (CODM), which we have identified as our Chief Executive Officer. This information is used to make resource allocation decisions and to assess financial performance. Our CODM reviews financial information prepared on a consolidated basis for the purposes of making resource allocation decisions and assessing the performance of the overall organization. Based on an evaluation of all facts and circumstances, the Company has determined that it functions as a single operating and reporting segment. We attribute revenues from external customers to individual countries based on the location of our delivery centres or where the services were provided from. Years Ended December 31 (millions) 2023 2022 2021 United States $ 520 $ 401 $ 311 Philippines 466 448 344 Canada 268 217 188 Guatemala 261 224 185 Germany 221 275 312 El Salvador 169 140 121 Spain 149 127 130 Bulgaria 127 129 124 India 120 99 72 Other 407 408 407 $ 2,708 $ 2,468 $ 2,194 We do not have significant amounts of net long-lived assets located outside of Canada. As at December 31, 2023, on a historical cost basis, we had net long-lived assets of approximately $3,528 million (December 31, 2022 – $2,373 million) located within Canada, and approximately $499 million (December 31, 2022 – $434 million) outside of Canada.

Summary of significant accoun_2

Summary of significant accounting policies (Policies)	12 Months Ended
	Dec. 31, 2023
Summary of significant accounting policies
Basis of presentation	Basis of presentation Our consolidated financial statements are expressed in United States dollars. The generally accepted accounting principles that we use are International Financial Reporting Standards as issued by the International Accounting Standards Board (IFRS-IASB). Generally accepted accounting principles require that we disclose our material accounting policies. Below, we have summarized our accounting policies, including those that have a material effect on these financial statements, and how we have applied certain accounting policies and our choices where selection among various generally accepted accounting principle-compliant accounting policies is permitted. In our assessment, all of our accounting policy disclosures are not equally material for us, as set out in the accompanying table; their relative materiality to us will evolve over time as we do.
Consolidation	Consolidation As at December 31, 2023, o ur consolidated financial statements include our accounts and the accounts of all of our subsidiaries. Our principal subsidiaries (wholly-owned unless otherwise denoted) are: TELUS International (U.S.) Corp.; Xavient Digital LLC; CallPoint New Europe EAD; TELUS International Services Limited; TELUS International Philippines Inc.; Voxpro Limited; TELUS International Germany GmbH; TELUS International AI Inc.; and WillowTree LLC (86% interest) . Our financing arrangements and those of our subsidiaries do not impose restrictions on inter-corporate dividends, but external dividends are restricted based upon total net debt to adjusted earnings before interest, income taxes, depreciation and amortization ratios, all as defined by our financing arrangements. On a continuing basis, we review our corporate organization and effect changes as appropriate so as to enhance the value of TELUS International. This process can, and does, affect which of our subsidiaries are considered principal subsidiaries at any particular point in time.
Use of estimates and judgments	Use of estimates and judgments The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates, assumptions and judgments that affect: the reported amounts of assets and liabilities at the date of the financial statements; the disclosure of contingent assets and liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates Examples of the estimates and assumptions that we make and their relative significance and degree of difficulty are as follows: Judgments Examples of our use of judgment, apart from those involving estimation, include the following: • Assessments about whether line items are sufficiently material to warrant separate presentation in the primary financial statements and, if not, whether they are sufficiently material to warrant separate presentation in the financial statement notes. In the normal course, we make changes to our assessments regarding presentation materiality so that they reflect current economic conditions. Due consideration is given to the view that it is reasonable to expect differing opinions of what is, and is not, material. • In respect of revenue-generating transactions, generally we must make judgments that affect the timing of the recognition of revenue as it relates to assessing when we have satisfied our performance obligations to our customers, either at a point in time or over a period of time. • The preparation of our financial statements in accordance with generally accepted accounting principles requires management to make judgments that affect the financial statement disclosure of information regularly reviewed by our chief operating decision maker used to make resource allocation decisions and to assess performance, as further discussed in Note 23—Segment Reporting . A significant judgment we make is that our cash flows are sufficiently indistinguishable given our global operating model, resulting in a single operating and reporting segment. • Determination of the functional currency of each subsidiary involves significant judgment. The determination of functional currency affects the carrying value of non-current assets included in the statement of financial position and, as a consequence, the amortization of those assets, as well as the exchange gains and losses recorded in the consolidated statement of comprehensive income and the consolidated statement of equity. • The decision to depreciate and amortize any property, plant, equipment and intangible assets that are subject to amortization on a straight-line basis, as we believe that this method reflects the consumption of resources related to the economic lifespan of those assets better than an accelerated method and is more representative of the economic substance of the underlying use of those assets. • In connection with the annual impairment testing of goodwill, there are instances where we must exercise judgment in the determination of our cash generating unit. A significant judgment that we make is that each geographic area in which we operate is insufficiently distinct, making it impractical to objectively distinguish the cash flows of each region. As such, each region is not an individual cash generating unit. • In respect of claims and lawsuits, as discussed further in Note 18(b)—Contingent liabilities—Claims and lawsuits , the determination of whether an item is a contingent liability or whether an outflow of resources is probable and thus needs to be accounted for as a provision.
Financial instruments - recognition and measurement	Financial instruments—recognition and measurement In respect of the recognition and measurement of financial instruments, we have adopted the following policies: • Derivatives that are part of an established and documented cash flow hedging relationship are accounted for as held for hedging. We believe that classification as held for hedging results in a better matching of the change in the fair value of the derivative financial instrument with the risk exposure being hedged. • Derivatives that are not part of a documented cash flow hedging relationship are accounted for as held for trading and thus are measured at fair value through net income. • Transaction costs, other than in respect of items held for trading, are added to the initial fair value of the acquired financial asset or financial liability. We have selected this method as we believe that it results in a better matching of the transaction costs with the periods in which we benefit from the transaction costs.
Hedge accounting	Hedge accounting Hedge accounting The purpose of hedge accounting, in respect of our designated hedging relationships, is to ensure that counterbalancing gains and losses are recognized in the same periods. We have chosen to apply hedge accounting as we believe that it is more representative of the economic substance of the underlying transactions. In order to apply hedge accounting, a high correlation (which indicates effectiveness) is required in the offsetting changes in the risk-associated values of the financial instruments (the hedging items) used to establish the designated hedging relationships and all, or a part, of the asset, liability or transaction having an identified risk exposure that we have taken steps to modify (the hedged items). We assess the anticipated effectiveness of designated hedging relationships at inception and their actual effectiveness for each reporting period thereafter. We consider a designated hedging relationship to be effective if the following critical terms match between the hedging item and the hedged item: the notional amount of the hedging item and the principal amount of the hedged item; maturity dates; payment dates; and interest rate index (if, and as, applicable). Any ineffectiveness, such as would result from a difference between the notional amount of the hedging item and the principal amount of the hedged item, or from a previously effective designated hedging relationship becoming ineffective, is reflected in the consolidated statements of income and other comprehensive income as Interest expense if in respect of long-term debt, or as Goods and services purchased if in respect of future purchase commitments. Hedging assets and liabilities In the application of hedge accounting, an amount (the hedge value) is recorded in the consolidated statement of financial position in respect of the fair value of the hedging items. The net difference, if any, between the amounts recognized in the determination of net income and the amounts necessary to reflect the fair value of the designated cash flow hedging items recorded in the consolidated statement of financial position is recognized as a component of Other comprehensive income. In the application of hedge accounting to the finance costs arising from interest paid on our long-term debt, the amount recognized in the determination of net income is the amount that counterbalances the difference between interest calculated at a variable interest rate, and the fixed interest rate as per our credit facility.
Revenue recognition	Revenue recognition Our solutions involve delivery of multiple services and products that occur at different points in time and/or over different periods of time. These arrangements may contain multiple performance obligations and the transaction price is measured and allocated among the performance obligations based upon their relative stand-alone selling price. Our relevant revenue recognition policies are then applied to the performance obligations. Multiple contracts with a single customer are normally accounted for as separate arrangements. In instances where multiple contracts are entered into with a customer in a short period of time, the contracts are reviewed as a group to ensure that, as with multiple performance obligation arrangements, their relative stand-alone selling prices are appropriate. Our revenues are recorded net of any value-added and/or sales taxes billed to the customer concurrent with a revenue-generating transaction. Discounts and rebates are recorded as a reduction to revenue rather than as an expense. We generally recognize revenues for each accounting period as services are provided, based on fees earned per-productive hour or per transaction. For fixed-fee contracts, revenues are estimated and recognized over time using the input method, which requires us to identify each performance obligation at the inception of a customer contract, and recognize revenue based on costs incurred toward the satisfaction of each performance obligation, such as labor hours expended, relative to the total expected costs required to satisfy that performance obligation, and where costs depict our performance in transferring control of goods or services to the customer. Fees are invoiced to customers on a regular basis. Advance billings are recorded when a billing occurs prior to provision of the associated services; such advance billings are recognized as revenue in the period in which the services are provided.
Depreciation, amortization and impairment	Depreciation, amortization and impairment Depreciation and amortization Property, plant, and equipment, including right-of-use lease assets, are depreciated on a straight-line basis over their estimated useful lives. Depreciation includes amortization of right-of-use lease assets and amortization of leasehold improvements. Leasehold improvements are normally amortized over the lesser of their expected average service life or the term of the lease. Intangible assets with finite lives are amortized on a straight-line basis over their estimated useful lives, which are reviewed at least annually and adjusted as appropriate. Estimated useful lives for our property, plant and equipment and right-of-use assets subject to depreciation are as follows: Estimated Computer hardware and network assets 3 to 7 years Buildings and leasehold improvements 5 to 20 years Furniture and equipment 3 to 7 years Right-of-use lease assets 3 to 20 years Estimated useful lives for our intangible assets subject to amortization are as follows: Estimated Customer contracts and related customer relationships 4 to 15 years Software 3 to 7 years Brand 3 years Standard operating procedures 5 years Crowdsource assets 8 years Impairment—general Impairment testing compares the carrying values of the assets or cash generating units being tested with their recoverable amounts (the recoverable amount being the greater of an asset’s value-in-use or its fair value less costs to sell). Impairment losses are immediately recognized, to the extent that the carrying value of an asset exceeds its recoverable amount. Should the recoverable amounts for impaired assets subsequently increase, the impairment losses previously recognized (other than in respect of goodwill) may be reversed to the extent that the reversal is not a result of “unwinding the discount” and that the resulting carrying values do not exceed the carrying values that would have been the result if no impairment losses had been previously recognized. Impairment—property, plant and equipment; intangible assets subject to amortization In our assessment of estimated useful lives of assets, we consider such items as the timing of technological obsolescence, competitive pressures and future infrastructure utilization plans. These considerations could indicate that the carrying value of an asset may not be recoverable. If the carrying value of an asset were not considered recoverable, an impairment loss is recorded. Impairment—goodwill We assess the carrying value of goodwill each period for indicators of impairment, and an impairment test is performed when an indicator exists. At a minimum, goodwill is tested annually for impairment on October 1.
Translation of foreign currencies	Translation of foreign currencies Trade transactions completed in foreign currencies are translated into United States dollars at the rates of exchange prevailing at the time of the transactions. Monetary assets and liabilities denominated in foreign currencies are translated into United States dollars at the rate of exchange in effect at the statement of financial position date, with any resulting gain or loss recorded to Foreign exchange in the consolidated statement of income and other comprehensive income. We have foreign subsidiaries that do not have the United States dollar as their functional currency. Foreign exchange gains and losses arising from the translation of these foreign subsidiaries’ accounts into United States dollars are reported as a component of other comprehensive income.
Income and other taxes	Income and other taxes We follow the liability method of accounting for income taxes. Under this method, current income taxes are recognized for the estimated income taxes payable for the current year. Deferred income tax assets and liabilities are recognized for temporary differences between the tax and accounting bases of assets and liabilities, and also for the benefit of losses available to be carried forward to future years for tax purposes that are more likely than not to be realized. The amounts recognized in respect of deferred income tax assets and liabilities are based upon the expected timing of the reversal of temporary differences or usage of tax losses and application of the substantively enacted tax rates at the time of reversal or usage. We account for any changes in substantively enacted income tax rates affecting deferred income tax assets and liabilities in full in the period in which the changes are substantively enacted. We account for changes in the estimates of tax balances for prior years as estimate revisions in the period in which the changes in estimates arise; we have selected this approach as its emphasis on the statement of financial position is more consistent with the liability method of accounting for income taxes. Our operations are complex and the related domestic and foreign tax interpretations, regulations, legislation and jurisprudence are continually changing. As a result, there are usually some tax matters in question that result in uncertain tax positions. We recognize the income tax benefit of an uncertain tax position when it is more likely than not that the ultimate determination of the tax treatment of the position will result in that benefit being realized; however, this does not mean that tax authorities cannot challenge these positions. We accrue an amount for interest charges on current tax liabilities that have not been funded, which would include interest and penalties arising from uncertain tax positions. We include such charges in the consolidated statement of income and other comprehensive income as a component of income tax expense.
Share-based compensation	Share-based compensation General Share-based compensation awards issued to certain of our employees include phantom and equity restricted share units, and phantom and equity share options. We recognize a share-based compensation expense in respect of these plans based on the fair value of the awards. Generally, the compensation expense of the award is recognized on a straight-line basis over the vesting of the award subject to continued service with us through the vesting date. A compensation expense is recognized for awards containing performance conditions only to the extent that it is probable that those performance conditions will be met and based on the expected achievement factor. Adjustments are made to reflect expected and actual forfeitures during the vesting period due to failure to satisfy service conditions or performance conditions against the original compensation expense recognized. Restricted share units Restricted share units are accounted for as equity instruments if they will be equity-settled, or liability instruments if they will be cash-settled. For equity-accounted awards, we recognize and measure compensation expense based on the grant date fair value, which is determined to be equal to the market price of one TELUS International subordinate voting share or TELUS Corporation common share. Fair value is not subsequently re-measured unless the conditions on which the award was granted are modified. For liability-accounted awards, we accrue a liability equal to the product of the number of vesting restricted share units multiplied by the market price of one TELUS International subordinate voting share at the end of the reporting period. A mark-to-market adjustment is recorded each period based on changes in the market price of shares. Share option awards Share option awards are accounted for as equity instruments if they will be equity-settled, or liability instruments if they are cash-settled. For equity-accounted awards, we recognize and measure compensation expense based on the grant date fair value, which is determined using the Black-Scholes option pricing model. Fair value is not subsequently re-measured unless the conditions on which the award was granted are modified. Proceeds arising from the exercise of equity-accounted share option awards are recognized as an increase to share capital, as are the recognized grant-date fair values of the exercised share option awards. For liability-accounted awards, we recognize and measure compensation expense based on the fair value of the award at the end of each reporting period, which is determined using the Black-Scholes option pricing model. The Black-Scholes option pricing model requires the input of certain assumptions, some of which are highly subjective, including the expected volatility of the price of our common shares, the expected term of the option and the expected dividend yield of our shares. These estimates involve inherent uncertainties and the application of management’s judgment. If factors change and different assumptions are used, our share-based compensation expense could be materially different in future periods.
Employee future benefit plans	Employee future benefit plans The Company records annual amounts relating to its defined benefit plan based on calculations that incorporate various actuarial and other assumptions, including discount rates, mortality, compensation increase and turnover rates. When the defined benefit plan’s key assumptions fluctuate relative to their immediately preceding year-end values, such actuarial gains or losses are recognized in other comprehensive income. We participate in defined benefit pension plans that share risks between TELUS Corporation and its subsidiaries as well as unfunded, non-contributory retirement plans of TELUS International and its subsidiaries. TELUS Corporation’s policy is to charge us our participant-based net defined benefit pension cost, as measured in accordance with IAS 19 , Employee Benefits , which are actuarially determined using the accrued benefit method pro-rated on service and management’s best estimates of salary escalation and the retirement ages of employees. In the determination of net income, net interest for each plan, which is the product of the plan’s surplus (deficit) multiplied by the discount rate, is included as a component of Interest expense.
Cash and cash equivalents	Cash and cash equivalents
Property, plant and equipment; intangible assets	Property, plant and equipment; intangible assets Property, plant and equipment (excluding right-of-use assets) are recorded at historical cost. Self-constructed property, plant and equipment assets includes materials, direct labor and applicable overhead costs. Right-of-use assets, which are included in property, plant and equipment, are initially measured at cost, which includes the amount of lease liabilities recognized at the inception of the lease, initial direct costs incurred, and lease payments made at or before the lease commencement date less any lease incentives received. Subsequent to the initial recognition, right-of-use assets may be adjusted for any re-measurement of the corresponding lease liabilities.
Provisions	Provisions Provisions are recognized when the Company has a present legal or constructive obligation as a result of past events, and it is probable that an outflow of resources will be required to settle the obligation and the amount can be reliably estimated. Provisions are measured at management’s best estimate of the expenditure required to settle the obligation at the end of the reporting period and are discounted to present value where the effect is material. Where discounting is used, the increase in the provision as a result of the passage of time is recognized as Interest expense in our consolidated statements of income and comprehensive income.
Lease liabilities	Lease liabilities Lease liabilities are initially measured at the present value of lease payments to be made over the expected lease term. Lease payments include fixed payments, less any lease incentives or discounts. The expected lease term is the non-cancellable term of the lease, together with any periods covered by an option to extend the lease if it is reasonably certain to be exercised, considering all relevant factors and terms of the lease arrangement. In calculating the present value of lease payments, we use the interest rate implicit in the lease, if that rate can be readily determined, otherwise we use our incremental borrowing rate based on a similar security, term and economic environment.
Business combinations	Business combinations We use the acquisition method to account for business combinations, under which we allocate the excess of the purchase price of business acquisitions over the fair value of identifiable net assets acquired to goodwill. The purchase price is determined as the fair value of assets transferred, liabilities assumed, or equity instruments issued on the date of exchange, which may include contingent considerations that are initially measured at fair value at the acquisition date. Subsequent changes to the fair value of any contingent considerations are recognized through profit or loss. Acquisition-related costs are expensed as incurred. For intangible assets acquired, the fair value is generally derived from a valuation analysis prepared by management or third-party experts as needed, based on appropriate valuation techniques using a forecast of the total expected future net cash flows and closely linked to the assumptions made by management regarding the future performance of the assets concerned and the discount rate applied. Where other markets or market participants are readily observable, these are considered in the determination of fair value. If the fair values of the assets, liabilities and contingent liabilities can only be calculated on a provisional basis, the business combination is recognized initially using provisional values. Any adjustments resulting from the completion of the measurement process are recognized within twelve months of the date of acquisition. Business transfers from related parties are accounted for as common control transactions using the predecessor accounting method wherein no assets or liabilities acquired are restated to their fair values and the results of operations include the transferred businesses’ results only from the date of our acquisition of them. No goodwill, except to the extent transferred as part of the transaction, is recognized on such transactions, and any excess purchase price is recorded as an adjustment to owners’ equity.

Summary of significant accoun_3

Summary of significant accounting policies (Tables)	12 Months Ended
	Dec. 31, 2023
Summary of significant accounting policies
Disclosure of accounting policies requiring a more significant choice among policies and/or a more significant application of judgment	Accounting policy requiring a more Accounting policy Yes No General application (a) Basis of presentation X (b) Consolidation X (c) Use of estimates and judgments X (d) Financial instruments—recognition and measurement X (e) Hedge accounting X Results of operations focused (f) Revenue recognition X (g) Depreciation, amortization and impairment X (h) Translation of foreign currencies X (i) Income and other taxes X (j) Share-based compensation X (k) Employee future benefit plans X Financial position focused (l) Cash and cash equivalents X (m) Property, plant and equipment; intangible assets X (n) Provisions X (o) Lease liabilities X (p) Business combinations X The table above summarizes our accounting policies, including those that require a more significant choice or application of judgment, and thus are considered our material accounting policies in accordance with IAS 1, Presentation of Financial Statements.
Schedule of useful lives of property, plant, and equipment, right-of-use lease assets and intangible assets	Estimated useful lives for our property, plant and equipment and right-of-use assets subject to depreciation are as follows: Estimated Computer hardware and network assets 3 to 7 years Buildings and leasehold improvements 5 to 20 years Furniture and equipment 3 to 7 years Right-of-use lease assets 3 to 20 years Estimated useful lives for our intangible assets subject to amortization are as follows: Estimated Customer contracts and related customer relationships 4 to 15 years Software 3 to 7 years Brand 3 years Standard operating procedures 5 years Crowdsource assets 8 years

Revenue from contracts with cus

Revenue from contracts with customers (Tables)	12 Months Ended
	Dec. 31, 2023
Receivables from contracts with customers [abstract]
Schedule of disaggregation of revenue	The following presents our earned revenue disaggregation for our five largest industry verticals: Years Ended December 31 (millions) 2023 2022 2021 Tech and Games $ 1,181 $ 1,148 $ 999 Communications and Media 645 580 537 eCommerce and FinTech 286 292 259 Healthcare 159 58 47 Banking, Financial Services and Insurance 150 159 97 All others (1) 287 231 255 $ 2,708 $ 2,468 $ 2,194 ______________________________________________ (1) All others includes, among others, travel and hospitality, energy and utilities, retail, and consumer packaged goods industry verticals. our earned revenue disaggregated by geographic region , based on location of our delivery centre or where service was provided, for the following periods: Years Ended December 31 (millions) 2023 2022 2021 Europe $ 821 $ 880 $ 921 North America 793 621 502 Asia-Pacific 631 591 455 Central America and others (1) 463 376 316 $ 2,708 $ 2,468 $ 2,194

Salaries and benefits (Tables)

Salaries and benefits (Tables)	12 Months Ended
	Dec. 31, 2023
Classes of employee benefits expense [abstract]
Schedule of employee benefit expenses	Years Ended December 31 (millions) Note 2023 2022 2021 Wages and salaries $ 1,532 $ 1,288 $ 1,133 Benefits 123 96 82 Pensions—defined contribution 19 9 9 7 $ 1,664 $ 1,393 $ 1,222

Share-based compensation (Table

Share-based compensation (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [abstract]
Summary of the activity related to restricted share units	The following table presents a summary of the activity related to our restricted share units: US$ denominated Number of units Weighted average grant-date Non-vested Vested Outstanding, January 1, 2021 1,383,642 — $ 7.94 Granted 1,383,983 — $ 27.26 Vested (805,429) 805,429 $ 7.29 Exercised — (805,429) $ 7.29 Forfeited (111,389) — $ 20.16 Outstanding, December 31, 2021 1,850,807 — $ 21.94 Granted 821,223 59,512 $ 26.41 Vested (798,373) 798,373 $ 16.63 Exercised (1) — (857,885) $ 17.52 Forfeited (267,836) — $ 19.85 Outstanding, December 31, 2022 1,605,821 — $ 27.10 Granted 1,567,809 770,043 $ 15.34 Vested (423,501) 423,501 $ 26.49 Exercised (1) — (1,193,544) $ 17.01 Forfeited (134,383) — $ 23.80 Outstanding, December 31, 2023 2,615,746 — $ 21.36 ______________________________________________ (1) During the year ended December 31, 2023, 1,193,544 RSUs (2022 - 360,044 RSUs) were exercised and settled with subordinate voting shares issued from treasury, and for the year ended December 31, 2022, all remaining 497,841 Phantom RSUs and Phantom PSUs were exercised and cash-settled in for $11 million based on a weighted average share price on the dates of exercises of $22.01. 2022 2021 Phantom TELUS Phantom TELUS Years Ended December 31 Canadian $ denominated Non-vested Vested Weighted Non-vested Vested Weighted Outstanding, beginning of year 78,011 — $ 24.20 156,749 — $ 24.17 Granted — — $ — 24,757 — $ 27.58 Vested (59,549) 59,549 $ 24.13 (85,154) 85,154 $ 23.96 Exercised (1) — (59,549) $ 24.13 — (86,745) $ 25.22 Dividends 1,568 — $ 30.85 5,023 1,591 $ 27.43 Forfeited (20,030) — $ 24.92 (23,364) — $ 24.72 Outstanding, end of year — — $ — 78,011 — $ 24.20 _________________________________________________ (1) In 2022, all remaining Phantom TELUS Corporation RSUs were either forfeited or exercised and cash-settled for CAD$2 million, reflecting the share price on the date of exercise of CAD$28.67.
Summary of the activity related to share option awards	The following table presents the activity related to our share option awards. US $ denominated Canadian $ denominated Number of share Number of share Non-vested Vested Weighted Non-vested Vested Weighted Outstanding, January 1, 2021 654,633 3,267,423 $ 6.23 — 242,244 $ 4.75 Granted 579,949 — $ 25.00 — — — Vested (150,397) 150,397 $ 5.78 — — — Exercised — (1,321,238) $ 5.74 — (242,244) $ 4.75 Outstanding, December 31, 2021 1,084,185 2,096,582 $ 9.86 — — — Vested (293,860) 293,860 $ 8.46 — — — Exercised (1) — (293,860) $ 8.46 — — — Forfeited (209,610) — $ 6.59 — — — Outstanding, December 31, 2022 580,715 2,096,582 $ 10.27 — — — Vested (358,413) 358,413 $ 6.43 — — — Exercised (1) — (124,337) $ 8.46 — — — Forfeited (2,202) (13,975) $ 5.77 — — — Outstanding, December 31, 2023 (2) 220,100 2,316,683 $ 10.39 — — — Exercisable, December 31, 2023 — 2,316,683 $ 9.00 — — — _________________________________________________ (1) During the year ended December 31, 2023, nil Share Options (2022 - 159,354 Share Options) were exercised and settled for shares issued from treasury (2022 - 65,859 shares, net of withholding taxes), and 124,337 Phantom Share Options (2022 - 134,506 Phantom Share Options) were exercised and cash-settled for $2 million ( 2022 - $2 million), reflecting the intrinsic value at the date of settlement and a wei ghted average share price on the dates of exercises of $14.81 (2022 - $23.75). (2)
Weighted average fair value assumptions used in the Black-Scholes valuation for stock options	The weighted average fair value of Share Options granted during the year ended December 31, 2021, and the weighted average assumptions used in the fair value estimation at the time of grant, calculated by using the Black-Scholes model, are as follows: Year Ended December 31 2021 Share option award fair value (per share option) $5.34 Risk free interest rate 0.73% Expected lives (years) 6.5 Expected volatility 19.30% Dividend yield —

Interest expense (Tables)

Interest expense (Tables)	12 Months Ended
	Dec. 31, 2023
Interest expense and foreign exchange
Schedule of interest expense and foreign exchange	Years Ended December 31 (millions) 2023 2022 2021 Interest expense Interest on long-term debt, excluding lease liabilities $ 104 $ 25 $ 27 Interest on lease liabilities 24 14 14 Amortization of financing fees and other 3 2 3 Interest accretion on provisions 13 — — $ 144 $ 41 $ 44

Income taxes (Tables)

Income taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Major components of tax expense (income) [abstract]
Expense composition	Years Ended December 31 (millions) 2023 2022 2021 Current income tax expense (recovery) For current reporting year $ 67 $ 96 $ 82 Adjustments recognized in the current year for income tax of prior years (5) 1 1 62 97 83 Deferred income tax expense (recovery) Arising from the origination and reversal of temporary differences (55) (31) (15) Adjustments recognized in the current year for income tax of prior years (2) 1 (4) (57) (30) (19) $ 5 $ 67 $ 64
Rate reconciliations	Our income tax expense and effective income tax rate di ffers from that calculated by applying the applicable statutory rates for the following reasons: Years Ended December 31 (millions, except percentages) 2023 2022 2021 Income taxes computed at applicable statutory rates $ 5 7.8 % $ 57 22.7 % $ 32 22.6 % Non-deductible items — — % 9 3.6 % 16 11.3 % Withholding and other taxes 18 31.2 % 23 9.3 % 18 12.7 % Losses not recognized 1 1.7 % 7 2.8 % 6 4.2 % Foreign tax differential (12) (20.3) % (30) (12.0) % (3) (2.1) % Adjustments recognized in the current year for income tax of prior years (7) (11.9) % 2 0.8 % (3) (2.1) % Other — — % (1) (0.4) % (2) (1.5) % Income tax expense $ 5 8.5 % $ 67 26.8 % $ 64 45.1 %
Temporary differences	Temporary differences comprising the net deferred income tax liability and the amounts of deferred income taxes recognized in the consolidated statement of income and other comprehensive income and the consolidated statement of changes in owners’ equity are estimated as follows: (millions) Property, plant and equipment Net pension Debt and Provisions Non-capital Leases Net deferred As at January 1, 2022 $ (316) $ 4 $ 8 $ 4 $ 15 $ 3 $ (282) Deferred income tax (expense) recovery recognized in: Net income 32 (3) (2) 9 (5) (1) 30 Other comprehensive income 8 — — (1) — — 7 Foreign currency translation — — — (5) — — (5) As at December 31, 2022 $ (276) $ 1 $ 6 $ 7 $ 10 $ 2 $ (250) Acquired during the year & other (83) — — 2 14 — (67) Deferred income tax (expense) recovery recognized in: Net income 35 2 (2) 4 16 2 57 Other comprehensive income — — — 4 (2) — 2 Foreign currency translation (3) — — — — — (3) As at December 31, 2023 $ (327) $ 3 $ 4 $ 17 $ 38 $ 4 $ (261)

Other comprehensive income (Tab

Other comprehensive income (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of analysis of other comprehensive income by item [abstract]
Schedule of other comprehensive income	Items that may subsequently be (millions) Change in unrealized fair value of cash flow hedges Cumulative foreign Accumulated Accumulated balance as at January 1, 2021 $ (51) $ 140 $ 89 Other comprehensive income (loss) Amount arising 41 (95) (54) Income taxes (1) — (1) Net 40 (95) (55) Accumulated balance as at December 31, 2021 $ (11) $ 45 $ 34 Other comprehensive income (loss) Amount arising 48 (89) (41) Income taxes (5) — (5) Net 43 (89) (46) Accumulated balance as at December 31, 2022 $ 32 $ (44) $ (12) Other comprehensive income (loss) Amount arising (29) 26 (3) Income taxes 2 — 2 Net $ (27) $ 26 $ (1) Accumulated balance as at December 31, 2023 $ 5 $ (18) $ (13)

Earnings per share (Tables)

Earnings per share (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings per share [abstract]
Schedule of the reconciliations of the denominators of the basic and diluted per share computations	Years Ended December 31 (millions, except earnings per share) 2023 2022 2021 Net income $ 54 $ 183 $ 78 Weighted average number of equity shares outstanding 274 266 264 Basic earnings per share $ 0.20 $ 0.69 $ 0.30 Years Ended December 31 2023 2022 2021 Net income $ 54 $ 183 $ 78 After-tax impact of provisions for written put options (3) — — Fully diluted net income $ 51 $ 183 $ 78 Weighted average number of equity shares outstanding 274 266 264 Dilutive effect of share-based compensation 3 4 3 Dilutive effect of provisions for written put options 9 — — Weighted average number of diluted equity shares outstanding 286 270 267 Diluted earnings per share $ 0.18 $ 0.68 $ 0.29

Accounts receivable (Tables)

Accounts receivable (Tables)	12 Months Ended
	Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]
Disclosure Of Detailed Information On Trade And Other Receivables	As at (millions) 2023 2022 Accounts receivable – billed $ 278 $ 223 Accounts receivable – unbilled 194 201 Other receivables 28 5 500 429 Allowance for doubtful accounts (2) (1) Total $ 498 $ 428 The following table presents an analysis of the age of customer accounts receivable. Any late payment charges are levied at a negotiated rate on outstanding non-current customer account balances. As at (millions) 2023 2022 Customer accounts receivable – billed, net of allowance for doubtful accounts Less than 30 days past billing date $ 174 $ 154 30-60 days past billing date 78 44 61-90 days past billing date 11 12 More than 90 days past billing date 13 12 276 222 Accounts receivable – unbilled 194 201 Other receivables 28 5 Total $ 498 $ 428
Disclosure Of Detailed Information On Allowance for Doubtful Accounts	The following table presents a summary of the activity related to our allowance for doubtful accounts: Years Ended December 31 (millions) 2023 2022 Balance, beginning of year $ 1 $ 2 Additions 1 — Write-off — (1) Balance, end of year $ 2 $ 1

Financial instruments and man_2

Financial instruments and management of financial risks (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about financial instruments [abstract]
Schedule of financial instruments, and the nature of certain risks to which they may be subject	Our financial instruments, and the nature of certain risks to which they may be subject, are as set out in the following table. Risks Market risks Financial instrument Accounting classification Credit Liquidity Currency Interest Measured at amortized cost Accounts receivable AC (1) X X Due from/to affiliated companies AC (1) X X Accounts payable and accrued liabilities AC (1) X X Provisions AC (1) X Long-term debt AC (1) X X Measured at fair value Cash and cash equivalents FVTPL (2) X X X Foreign exchange and interest rate derivatives (3) FVTPL/FVOCI (2) X X X X _________________________________________________ (1) For accounting recognition and measurement purposes, classified as amortized cost (AC). All such items, excluding our provisions for written put options, use other observable inputs (Level 2) for measuring fair value at the reporting date, while our provisions for written put options use unobservable inputs (Level 3). (2) For accounting recognition and measurement purposes, classified as fair value through net income (FVTPL). Unrealized changes in the fair values of financial instruments are included in net income unless the instrument is part of a cash flow hedging relationship. The effective portion of unrealized changes in the fair values of financial instruments held for hedging are included in other comprehensive income (FVOCI). (3) Use of derivative financial instruments is subject to a policy which requires that no derivative transaction is to be entered into for the purpose of establishing a speculative or leveraged position (the corollary being that all derivative transactions are to be entered into for risk management purposes only) and sets criteria for the credit worthiness of the transaction counterparties.
Schedule of maximum exposure (excluding income tax effects) to credit risk	Excluding credit risk, if any, arising from interest rate and currency swaps settled on a gross basis, the best representation of our maximum exposure (excluding income tax effects) to credit risk, which is a worst-case scenario and does not reflect results we expect, is as set out in the following table: As at December 31 (millions) 2023 2022 Cash and cash equivalents $ 127 $ 125 Accounts receivable 498 428 Due from affiliated companies 62 81 Derivative assets 16 32 $ 703 $ 666
Schedule of contractual maturities of undiscounted financial liabilities, non-derivative	The contractual maturities of our undiscounted financial liabilities as at December 31, 2023, including interest thereon (where applicable), are as set out in the following tables: Non-derivative Derivative Composite long-term debt Currency swap Year (millions) Non- Due to affiliated companies (Note 21(a)) Long-term debt, excluding leases (1) (Note 16) Leases (Receive) Pay Interest rate swap agreement Total 2024 $ 292 $ 178 $ 169 $ 86 $ (146) $ 132 $ 2 $ 713 2025 19 — 164 78 (41) 34 — 254 2026 41 — 160 68 (39) 33 (1) 262 2027 131 — 155 52 (38) 32 (1) 331 2028 39 — 1,224 39 (342) 347 — 1,307 Thereafter — — — 80 — — — 80 Total $ 522 $ 178 $ 1,872 $ 403 $ (606) $ 578 $ — $ 2,947 _________________________________________________ (1) Future cash outflows in respect of associated interest and carrying costs for amounts drawn under our credit facilities (if any) have been calculated based upon the rates in effect at December 31, 2023.
Schedule of contractual maturities of undiscounted financial liabilities, derivative	The contractual maturities of our undiscounted financial liabilities as at December 31, 2023, including interest thereon (where applicable), are as set out in the following tables: Non-derivative Derivative Composite long-term debt Currency swap Year (millions) Non- Due to affiliated companies (Note 21(a)) Long-term debt, excluding leases (1) (Note 16) Leases (Receive) Pay Interest rate swap agreement Total 2024 $ 292 $ 178 $ 169 $ 86 $ (146) $ 132 $ 2 $ 713 2025 19 — 164 78 (41) 34 — 254 2026 41 — 160 68 (39) 33 (1) 262 2027 131 — 155 52 (38) 32 (1) 331 2028 39 — 1,224 39 (342) 347 — 1,307 Thereafter — — — 80 — — — 80 Total $ 522 $ 178 $ 1,872 $ 403 $ (606) $ 578 $ — $ 2,947 _________________________________________________ (1) Future cash outflows in respect of associated interest and carrying costs for amounts drawn under our credit facilities (if any) have been calculated based upon the rates in effect at December 31, 2023.
Sensitivity analysis of exposure to market risks	Net income Other Comprehensive Years Ended December 31 (increase (decrease) in millions) 2023 2022 2021 2023 2022 2021 2023 2022 2021 Reasonably possible changes in market risks (1) 10% change in US$: CDN$ exchange rate US$ appreciates $ 10 $ 8 $ 14 $ — $ — $ — $ 10 $ 8 $ 14 US$ depreciates $ (12) $ (8) $ (14) $ — $ — $ — $ (12) $ (8) $ (14) 10% change in US$: Euro exchange rate US$ appreciates $ 7 $ 14 $ 11 $ (41) $ (44) $ (36) $ (34) $ (30) $ (25) US$ depreciates $ (7) $ (14) $ (11) $ 41 $ 44 $ 36 $ 34 $ 30 $ 25 10% change in US$: Peso exchange rate US$ appreciates $ (3) $ (2) $ (1) $ — $ — $ — $ (3) $ (2) $ (1) US$ depreciates $ 3 $ 2 $ 1 $ — $ — $ — $ 3 $ 2 $ 1 25 basis point change in market interest rate Rate increases $ (3) $ (1) $ (2) $ — $ — $ — $ (3) $ (1) $ (2) Rate decreases $ 3 $ 1 $ 2 $ — $ — $ — $ 3 $ 1 $ 2 _________________________________________________ (1) These sensitivities are hypothetical and should be used with caution. Changes in net income and/or other comprehensive income generally cannot be extrapolated because the relationship of the change in assumption to the change in net income and/or other comprehensive income may not be linear. In this table, the effect of a variation in a particular assumption on the amount of net income and/or other comprehensive income is calculated without changing any other factors; in reality, changes in one factor may result in changes in another, which might magnify or counteract the sensitivities. The sensitivity analysis assumes that we would realize the changes in exchange rates; in reality, the competitive marketplace in which we operate would have an effect on this assumption. No consideration has been made for a difference in the notional number of common shares associated with share-based compensation awards made during the reporting period that may have arisen due to a difference in the common share price. (2) To facilitate ongoing comparison of sensitivities, a constant variance of approximate magnitude has been used.
Schedule of derivative financial instruments measured at fair value on a recurring basis	The derivative financial instruments that we measure at fair value on a recurring basis subsequent to initial recognition are as set out in the following table; all such items use significant other observable inputs (Level 2) for measuring fair value at the reporting date. 2023 2022 As at December 31 (millions) Designation Maximum Notional Fair Price or Maximum Notional Fair Price or Current assets (1) Derivatives used to manage Currency risks arising from Euro business acquisition HFH 3 2024 $ 22 $ 12 USD:1.00 EUR:0.92 2023 $ 21 $ 19 USD:1.00 EUR:0.86 Currency risks arising from Philippine peso denominated purchases HFT 2 2024 $ 81 $ 2 USD:1.00PHP:56.32 2023 $ 53 $ — USD:1.00PHP:56.90 Interest rate risk associated with non-fixed rate credit facility amounts drawn HFH 3 2024 $ 9 $ 2 3.52% — $ — $ — — Non-current assets (1) Derivatives used to manage Currency risks arising from Euro business acquisition HFH 3 — $ — $ — — 2025 $ 341 $ 13 USD:1.00 EUR:0.86 Current liabilities (1) Derivatives used to manage Currency risks arising from Philippine peso denominated purchases HFT 2 2024 $ 17 $ — USD:1.00PHP:54.94 2023 $ 50 $ 1 USD:1.00PHP:53.55 Non-current liabilities (1) Derivatives used to manage Currency risks arising from Euro business acquisition HFH 3 2028 $ 409 $ 10 USD:1.00 EUR0.92 — $ — $ — — Interest rate risk associated with non-fixed rate credit facility amounts drawn HFH 3 2028 $ 155 $ 2 3.52% — $ — $ — — ______________________________________ (1) Notional amounts of derivative financial assets and liabilities are not set off. (2) Foreign currency hedges are designated as held for trading (HFT) upon initial recognition; hedge accounting is not applied. (3) Designated as held for hedging (HFH) upon initial recognition (cash flow hedging item); hedge accounting is applied. Unless otherwise noted, hedge ratio is 1:1 and is established by assessing the degree of matching between the notional amounts of hedging items and the notional amounts of the associated hedged items.
Schedule of gains and losses, excluding income tax effects, arising from derivative instruments that are classified as cash flow hedging items	The following table sets out the gains and losses, excluding income tax effects, arising from derivative instruments that are classified as cash flow hedging items and their location within the Consolidated statements of income and other comprehensive income. Credit risk associated with such derivative instruments, as discussed further in (b) , would be the primary source of hedge ineffectiveness. There was no ineffective portion of derivative instruments classified as cash flow hedging items for the periods presented. Amount of gain (loss) Gain (loss) reclassified from other Amount Amount Years Ended December 31 (millions) 2023 2022 2021 Location 2023 2022 2021 Derivatives used to manage interest rate risk Associated with non-fixed rate credit facility amounts drawn $ 2 $ 1 $ — Interest expense $ 2 $ (1) $ (3) $ 2 $ 1 $ — $ 2 $ (1) $ (3) Derivatives used to manage currency risks Arising from net investment in foreign operation $ (29) $ 37 $ 38 Foreign exchange $ — $ (9) $ — $ (27) $ 38 $ 38 $ 2 $ (10) $ (3)

Property, plant and equipment (

Property, plant and equipment (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [abstract]
Schedule of property, plant and equipment	Owned Assets Right-of- (millions) Network assets Buildings and Computer equipment, furniture, and other Assets Total Buildings Total At cost As at January 1, 2022 $ 48 $ 119 $ 231 $ 26 $ 424 $ 317 $ 741 Additions 1 8 22 61 92 87 179 Additions from acquisition — 2 1 — 3 2 5 Dispositions, retirements and other (1) (8) (15) — (24) (11) (35) Transfers 3 22 27 (52) — — — Foreign exchange (2) (5) (9) (2) (18) (10) (28) As at December 31, 2022 $ 49 $ 138 $ 257 $ 33 $ 477 $ 385 $ 862 Additions 3 3 19 54 79 92 171 Additions from acquisition 14(c) — 10 5 — 15 19 34 Dispositions, retirements and other — (1) (9) — (10) (13) (23) Transfers 7 8 35 (50) — — — Foreign exchange — 1 1 — 2 4 6 As at December 31, 2023 $ 59 $ 159 $ 308 $ 37 $ 563 $ 487 $ 1,050 Accumulated depreciation As at January 1, 2022 $ 26 $ 45 $ 138 $ — $ 209 $ 127 336 Depreciation 7 17 43 — 67 57 124 Dispositions, retirements and other (1) (8) (15) — (24) (11) (35) Foreign exchange (1) (1) (6) — (8) (4) (12) As at December 31, 2022 $ 31 $ 53 $ 160 $ — $ 244 $ 169 $ 413 Depreciation 8 22 46 — 76 65 141 Dispositions, retirements and other — (1) (9) — (10) (13) (23) Foreign exchange — 1 — — 1 1 2 As at December 31, 2023 $ 39 $ 75 $ 197 $ — $ 311 $ 222 $ 533 Net Book Value As at December 31, 2022 $ 18 $ 85 $ 97 $ 33 $ 233 $ 216 $ 449 As at December 31, 2023 $ 20 $ 84 $ 111 $ 37 $ 252 $ 265 $ 517

Intangible assets and goodwill

Intangible assets and goodwill (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about intangible assets [abstract]
Schedule of Intangible assets and goodwill	Intangible assets subject to amortization (millions) Note Customer Crowdsource assets Software Brand and other Total Goodwill Total At cost As at January 1, 2022 $ 1,182 $ 120 $ 57 $ 37 $ 1,396 $ 1,380 $ 2,776 Additions — — 12 — 12 — 12 Additions from acquisition — — — — — 9 9 Dispositions and other — — (11) — (11) — (11) Foreign exchange (31) — (1) (2) (34) (39) (73) As at December 31, 2022 $ 1,151 $ 120 $ 57 $ 35 $ 1,363 $ 1,350 $ 2,713 Additions — — 14 — 14 — 14 Additions from acquisition 14(c) 602 — — 92 694 599 1,293 Dispositions and other — — (9) (25) (34) — (34) Foreign exchange 16 — 1 2 19 14 33 As at December 31, 2023 $ 1,769 $ 120 $ 63 $ 104 $ 2,056 $ 1,963 $ 4,019 Accumulated amortization As at January 1, 2022 $ 173 $ 15 $ 31 $ 19 $ 238 $ — $ 238 Amortization 96 15 13 10 134 — 134 Dispositions and other — — (11) — (11) — (11) Foreign exchange (5) — — (1) (6) — (6) As at December 31, 2022 $ 264 $ 30 $ 33 $ 28 $ 355 $ — $ 355 Amortization 138 15 9 21 183 — 183 Dispositions and other — — (9) (25) (34) — (34) Foreign exchange 5 — — 1 6 — 6 As at December 31, 2023 $ 407 $ 45 $ 33 $ 25 $ 510 $ — $ 510 Net book value As at December 31, 2022 $ 887 $ 90 $ 24 $ 7 $ 1,008 $ 1,350 $ 2,358 As at December 31, 2023 $ 1,362 $ 75 $ 30 $ 79 $ 1,546 $ 1,963 $ 3,509
Schedule of acquisition costs	Acquisition-date fair values assigned to the assets acquired and liabilities assumed are set out in the following table: (millions) WillowTree Other Total Assets Current assets Cash $ 5 $ — $ 5 Accounts receivable 62 1 63 Prepaid and other assets 3 — 3 70 1 71 Non-current assets Property, plant and equipment Owned assets 15 — 15 Right-of-use lease assets 19 — 19 Intangible assets subject to amortization (1) 692 2 694 726 2 728 Total identifiable assets acquired 796 3 799 Liabilities Current liabilities Accounts payable and accrued liabilities 43 — 43 Income and other taxes payable 1 — 1 Current maturities of long-term debt 91 1 92 135 1 136 Non-current liabilities Long-term debt 16 — 16 Deferred income taxes 69 — 69 85 — 85 Total liabilities assumed 220 1 221 Net identifiable assets acquired 576 2 578 Goodwill 599 — 599 Net assets acquired $ 1,175 $ 2 $ 1,177 Acquisition effected by way of: — Cash $ 856 $ 1 $ 857 Provisions (2) 194 1 195 Subordinate voting shares (3) 125 — 125 $ 1,175 $ 2 $ 1,177 ______________________________________________ (1) Customer relationships are generally expected to be amortized over a period of 15 years; brand and other intangible assets recognized are expected to be amortized over a period of three (2) Provisions recognized in the WillowTree acquisition were in connection with the written put options granted to certain members of the WillowTree management team. (3)

Provisions - (Tables)

Provisions - (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of other provisions [abstract]
Schedule of other provisions	(millions) Employee related (1) Written put options (2) Other (3) Total As at January 1, 2022 $ — $ — $ 5 $ 5 Reversals — — (2) (2) As at December 31, 2022 $ — $ — $ 3 $ 3 Current — — 1 1 Non-current — — 2 2 As at December 31, 2022 $ — $ — $ 3 $ 3 As at January 1, 2023 $ — $ — $ 3 $ 3 Additions 14 194 2 210 Use (11) — — (11) Reversals (2) — (1) (3) Revaluations — (20) — (20) Interest effect and other — 14 — 14 As at December 31, 2023 $ 1 $ 188 $ 4 $ 193 Current 1 — 1 2 Non-current — 188 3 191 As at December 31, 2023 $ 1 $ 188 $ 4 $ 193 ______________________________________________ (1) Related to personnel-related reorganization charges. (2) In connection with our acquisition of WillowTree, a provision for written put options to acquire the non-controlling interest in the WillowTree business retained by certain members of WillowTree management was established, measured at the present value of the estimated redemption amount (see Note 14(c)—Intangible assets and goodwill—Business acquisitions ). During the year ended December 31, 2023, we revised our estimates of certain performance-based criteria tied to the WillowTree business, which resulted in a reduction of the written put option provision by $20 million, included in Changes in business combination-related provisions in our consolidated statements of income and comprehensive income. (3) Other provisions generally relate to legal and other activities that arise during the normal course of operations.

Long-term debt (Tables)

Long-term debt (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of detailed information about borrowings [abstract]
Schedule of details of long-term debt	As at December 31 (millions) Note 2023 2022 Credit facility (b) $ 1,463 $ 742 Deferred debt transaction costs (11) (14) 1,452 728 Lease liabilities (c) 298 236 Long-term debt $ 1,750 $ 964 Current 122 83 Non-current 1,628 881 Long-term debt $ 1,750 $ 964 2023 2022 As at December 31 (millions) Revolving Term loan component (1) Total Revolving Term loan component (1) Total Available $ 492 N/A $ 492 $ 658 $ 600 $ 1,258 Outstanding Due to TELUS Corporation $ 22 $ 83 $ 105 $ 10 $ 43 $ 53 Due to Other 286 1,072 1,358 132 557 689 $ 308 $ 1,155 $ 1,463 $ 142 $ 600 $ 742 Total $ 800 $ 1,155 $ 1,955 $ 800 $ 1,200 $ 2,000 _________________________________________________ (1)
Schedule of long-term debt maturities	Anticipated requirements to meet long-term debt repayments, calculated upon such long-term debts owing as at Composite long-term debt denominated in U.S dollars European euros Other currencies Years ending December 31 (millions) Long-term Leases Total Leases Leases Total 2024 $ 60 $ 18 $ 78 $ 16 $ 24 $ 118 2025 60 19 79 15 22 116 2026 60 19 79 10 20 109 2027 60 16 76 5 18 99 2028 1,223 10 1,233 4 15 1,252 Thereafter — 24 24 27 16 67 Future cash outflows in respect of 1,463 106 1,569 77 115 1,761 Future cash outflows in respect of associated interest and like carrying costs (1) 409 54 463 16 35 514 Undiscounted contractual maturities $ 1,872 $ 160 $ 2,032 $ 93 $ 150 $ 2,275 _________________________________________________ (1) Future cash outflows in respect of associated interest and carrying costs for amounts drawn under our amended credit facility (if any) have been calculated based upon the rates in effect at December 31, 2023.

Share capital (Tables)

Share capital (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of classes of share capital [abstract]
Schedule of authorized share capital	Our authorized and issued share capital as at December 31, 2023, was as follows: Authorized Issued As at December 31 (millions) 2023 2022 2021 2023 2022 2021 Preferred Shares unlimited unlimited unlimited — — — Equity Shares Class A n/a n/a unlimited n/a n/a n/a Class B, redesignated as Multiple Voting Shares unlimited unlimited unlimited 167 200 200 Class C n/a n/a unlimited n/a n/a n/a Class D n/a n/a unlimited n/a n/a n/a Class E, redesignated as Subordinate Voting Shares unlimited unlimited unlimited 107 67 66

Related party transactions (Tab

Related party transactions (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of transactions between related parties [abstract]
Schedule of transactions with TELUS Corporation	2023 2022 2021 As at, or Year Ended December 31 (millions) TELUS Subsidiaries Total TELUS Subsidiaries Total TELUS Subsidiaries Total Transactions with TELUS Corporation and subsidiaries Revenues from services provided to $ — $ 559 $ 559 $ — $ 428 $ 428 $ — $ 353 $ 353 Goods and services purchased from — (28) (28) — (33) (33) — (30) (30) — 531 531 — 395 395 — 323 323 Receipts from related parties — (600) (600) — (417) (417) — (339) (339) Payments to related parties — 28 28 1 32 33 20 — 20 Payments (made) collected by related parties on our behalf and other adjustments (1) (62) 15 (47) (50) 25 (25) (91) 53 (38) Foreign exchange 2 — 2 2 — 2 — (2) (2) Change in balance (60) (26) (86) (47) 35 (12) (71) 35 (36) Accounts with TELUS Corporation and subsidiaries Balance, beginning of year (91) 61 (30) (44) 26 (18) 27 (9) 18 Balance, end of year $ (151) $ 35 $ (116) $ (91) $ 61 $ (30) $ (44) $ 26 $ (18) Accounts with TELUS Corporation and subsidiaries Due from $ 20 $ 42 $ 62 $ 8 $ 73 $ 81 $ — $ 53 $ 53 Due to $ (171) $ (7) $ (178) $ (99) $ (12) $ (111) $ (44) $ (27) $ (71) $ (151) $ 35 $ (116) $ (91) $ 61 $ (30) $ (44) $ 26 $ (18) ______________________________________________ (1) Certain key management personnel at TELUS International participate in the Pension Plan for Management and Professional Employees of TELUS Corporation , a defined benefit pension plan. During the year ended December 31, 2023, TELUS Corporation incurred CAD$2 million (December 31, 2022 and 2021 - CAD$2 million and $nil, respectively) for these individuals, which are excluded from the table above.
Summary of transactions with key management personnel	Total compensation expense and its composition for the key management personnel is as follows: Years Ended December 31 (millions) 2023 2022 2021 Short-term benefits $ 5 $ 7 $ 5 Post-employment pension (1) and other benefits $ 2 $ 1 $ 1 Share-based compensation (2) $ 11 $ 11 $ 43 _________________________________________________ (1) Certain members of our executive leadership team participate in our Pension Plan for Management and Professional Employees of TELUS Corporation and certain other non-registered, non-contributory supplementary defined benefit pension plans. (2) In 2023, we awarded 458,854 RSUs and 322,984 PSUs to our key management personnel, with a grant-date fair value of $9 million and $7 million, respectively. In 2022, we awarded 301,190 RSUs and 229,627 PSUs to our key management personnel, with a grant-date fair value of $8 million and $6 million, respectively. In 2021, we awarded 863,755 RSUs, 192,064 PSUs, 579,949 Share Options, and 24,757 Phantom TELUS Corporation RSUs to our key management personnel, with a grant-date fair value of $22 million, $6 million, $3 million and $1 million, respectively.

Additional financial informat_2

Additional financial information (Tables)	12 Months Ended
	Dec. 31, 2023
Additional financial information
Schedule of additional information for statements of financial position	As at December 31 (millions) 2023 2022 Other long-term assets Prepaid lease deposits and other $ 21 $ 20 Other 4 7 $ 25 $ 27 Accounts payable and accrued liabilities Trade accounts payable $ 37 $ 39 Accrued liabilities 103 110 Payroll and other employee-related liabilities 135 129 Advance billings 4 5 Other 11 6 $ 290 $ 289
Schedule of operating activities and investing activities	Years Ended December 31 (millions) 2023 2022 2021 Net change in non-cash operating working capital Accounts receivable $ 3 $ (26) $ (124) Due to and from affiliated companies, net 86 17 36 Prepaid expenses — 6 (13) Other long-term assets 2 6 1 Accounts payable and accrued liabilities (45) (27) 56 Income and other taxes receivable and payable, net (2) (1) (10) Advance billings and customer deposits — — — Provisions 2 — — Other long-term liabilities (3) (1) (15) $ 43 $ (26) $ (69) Cash payments for capital assets Capital asset additions Capital expenditures Property, plant and equipment, excluding right-of-use assets $ (79) $ (92) $ (93) Intangible assets (14) (12) (8) (93) (104) (101) Change in associated non-cash investing working capital 4 (1) 2 $ (89) $ (105) $ (99)
Schedule of changes in liabilities arising from financing activities	Statements of cash flows Non-cash changes Year Ended December 31, 2023 (millions) Beginning Issued Redemptions, Foreign Other End of Long-term debt Credit facility $ 742 $ 1,161 $ (440) $ — $ — $ 1,463 Debt assumed from acquisitions — — (89) — 89 — Lease liabilities 236 — (84) 9 137 298 Deferred debt transaction costs (14) — — — 3 (11) $ 964 $ 1,161 $ (613) $ 9 $ 229 $ 1,750 Statements of cash flows Non-cash changes Year Ended December 31, 2022 (millions) Beginning of year Issued or Redemptions, Foreign exchange movement Other End of Long-term debt Credit facility $ 941 $ 411 $ (610) $ — $ — $ 742 Lease liabilities 215 — (72) (7) 100 236 Deferred debt transaction costs (8) — (8) — 2 (14) $ 1,148 $ 411 $ (690) $ (7) $ 102 $ 964 Statements of cash flows Non-cash changes Year Ended December 31, 2021 (millions) Beginning Issued or Redemptions, Foreign exchange movement Other End of Long-term debt Credit facility $ 1,568 $ 71 $ (698) $ — $ — $ 941 Lease liabilities 209 — (67) (3) 76 215 Deferred debt transaction costs (11) — — — 3 (8) $ 1,766 $ 71 $ (765) $ (3) $ 79 $ 1,148

Segment reporting (Tables)

Segment reporting (Tables)	12 Months Ended
	Dec. 31, 2023
Disclosure of operating segments [abstract]
Schedule of reconciliation of revenue and net long-lived assets by geographic area	We attribute revenues from external customers to individual countries based on the location of our delivery centres or where the services were provided from. Years Ended December 31 (millions) 2023 2022 2021 United States $ 520 $ 401 $ 311 Philippines 466 448 344 Canada 268 217 188 Guatemala 261 224 185 Germany 221 275 312 El Salvador 169 140 121 Spain 149 127 130 Bulgaria 127 129 124 India 120 99 72 Other 407 408 407 $ 2,708 $ 2,468 $ 2,194

Summary of significant accoun_4

Summary of significant accounting policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 segment shares
share-based compensation
Number of operating segments | segment	1
Number of reporting segments | segment	1
WillowTree
share-based compensation
Proportion of ownership interest in subsidiary	86%
Common Share | Restricted Stock Units
share-based compensation
Grant date fair value, number of shares (in shares) | shares	1
Market price multiplier, number of shares (in shares) | shares	1

Summary of significant accoun_5

Summary of significant accounting policies - Useful lives property, plant and equipment and right-of-use lease assets (Details)	12 Months Ended
	Dec. 31, 2023
Network assets | Minimum
Property, plant and equipment
Useful lives	3 years
Network assets | Maximum
Property, plant and equipment
Useful lives	7 years
Buildings and leasehold improvements | Minimum
Property, plant and equipment
Useful lives	5 years
Buildings and leasehold improvements | Maximum
Property, plant and equipment
Useful lives	20 years
Computer equipment, furniture, and other | Minimum
Property, plant and equipment
Useful lives	3 years
Computer equipment, furniture, and other | Maximum
Property, plant and equipment
Useful lives	7 years
Right-of-use lease assets | Minimum
Property, plant and equipment
Useful lives	3 years
Right-of-use lease assets | Maximum
Property, plant and equipment
Useful lives	20 years

Summary of significant accoun_6

Summary of significant accounting policies - Useful lives intangible assets (Details)	12 Months Ended
	Dec. 31, 2023
Customer relationships | Minimum
Disclosure of detailed information about intangible assets [line items]
Estimated useful lives of purchased intangible assets other than goodwill	4 years
Customer relationships | Maximum
Disclosure of detailed information about intangible assets [line items]
Estimated useful lives of purchased intangible assets other than goodwill	15 years
Software | Minimum
Disclosure of detailed information about intangible assets [line items]
Estimated useful lives of purchased intangible assets other than goodwill	3 years
Software | Maximum
Disclosure of detailed information about intangible assets [line items]
Estimated useful lives of purchased intangible assets other than goodwill	7 years
Brand
Disclosure of detailed information about intangible assets [line items]
Estimated useful lives of purchased intangible assets other than goodwill	3 years
Standard operating procedures
Disclosure of detailed information about intangible assets [line items]
Estimated useful lives of purchased intangible assets other than goodwill	5 years
Crowdsource assets
Disclosure of detailed information about intangible assets [line items]
Estimated useful lives of purchased intangible assets other than goodwill	8 years

Capital structure financial p_2

Capital structure financial policies (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	Feb. 03, 2021	Dec. 31, 2023	Jan. 03, 2023	Dec. 31, 2022
Disclosure of objectives, policies and processes for managing capital [line items]
Common shares issued (in shares)	21
Share issue price (in dollars per share)	$ 25
Credit facility
Disclosure of objectives, policies and processes for managing capital [line items]
Maximum aggregate amount of credit facility		$ 1,955	$ 2,000	$ 2,000
Revolving component
Disclosure of objectives, policies and processes for managing capital [line items]
Maximum aggregate amount of credit facility		800	800	800
Term loan components
Disclosure of objectives, policies and processes for managing capital [line items]
Maximum aggregate amount of credit facility		$ 1,155	$ 1,200	$ 1,200

Revenue from contracts with c_2

Revenue from contracts with customers (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	$ 2,708	$ 2,468	$ 2,194
Europe
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	821	880	921
North America
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	793	621	502
Asia-Pacific
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	631	591	455
Central America, South America, Africa
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	463	376	316
Tech and Games
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	1,181	1,148	999
Communications and Media
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	645	580	537
eCommerce and FinTech
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	286	292	259
Healthcare
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	159	58	47
Banking, Financial Services and Insurance
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	150	159	97
All others
Disclosure of disaggregation of revenue from contracts with customers
Revenue from contracts with customers	$ 287	$ 231	$ 255

Salaries and benefits (Details)

Salaries and benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Employee benefits expense - gross
Wages and salaries	$ 1,532	$ 1,288	$ 1,133
Benefits	123	96	82
Pensions—defined contribution	9	9	7
Salaries and benefits	$ 1,664	$ 1,393	$ 1,222

Share-based compensation - Rest

Share-based compensation - Restricted share unit plan (Details)	12 Months Ended
	Dec. 31, 2023 yr shares installment	Dec. 31, 2022 shares yr
share-based compensation
Number of vesting installments | installment	3
Expected lives (years) | yr		6.5
Performance Share Units
share-based compensation
Expected lives (years) | yr	3
Number of other equity instruments outstanding in share-based payment arrangement (in shares)	688,752	387,025
Restricted Stock Units
share-based compensation
Number of other equity instruments outstanding in share-based payment arrangement (in shares)	1,926,994	1,218,796
Common Share | Restricted Stock Units
share-based compensation
120000000	1
Common Share | Phantom restricted share units
share-based compensation
120000000	1

Share-based compensation - Sche

Share-based compensation - Schedule of restricted share units (Details) $ / shares in Units, $ / shares in Units, $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 shares $ / shares	Dec. 31, 2022 USD ($) shares $ / shares	Dec. 31, 2022 CAD ($) shares $ / shares	Dec. 31, 2021 shares $ / shares
Phantom restricted share units - US$ denominated
Number of restricted share units - Non-vested
Outstanding, beginning of year (in shares)	1,605,821	1,850,807	1,850,807	1,383,642
Granted (in shares)	1,567,809	821,223	821,223	1,383,983
Vested (in shares)	(423,501)	(798,373)	(798,373)	(805,429)
Forfeited (in shares)	(134,383)	(267,836)	(267,836)	(111,389)
Outstanding, end of year (in shares)	2,615,746	1,605,821	1,605,821	1,850,807
Granted (in shares)	770,043	59,512	59,512
Number of restricted share units - Vested
Vested (in shares)	423,501	798,373	798,373	805,429
Exercised (in shares)	1,193,544	857,885	857,885	805,429
Grant-date fair value
Outstanding, beginning of year (in USD and CDN dollars per share) | $ / shares	$ 27.10	$ 21.94		$ 7.94
Granted (in USD and CDN dollars per share) | $ / shares	15.34	26.41		27.26
Vested (in USD and CDN dollars per share) | $ / shares	26.49	16.63		7.29
Exercised (in USD and CDN dollars per share) | $ / shares	17.01	17.52		7.29
Forfeited (in USD and CDN dollars per share) | $ / shares	23.80	19.85		20.16
Outstanding, end of year (in USD and CDN dollars per share) | $ / shares	$ 21.36	$ 27.10		$ 21.94
Phantom Restricted Share Units Settled With Subordinate Voting Shares
Number of restricted share units - Vested
Exercised (in shares)		360,044	360,044
Phantom Restricted Share Units and Phantom Share Units Settled With Cash
Number of restricted share units - Vested
Exercised (in shares)		497,841	497,841
Grant-date fair value
Exercised (in USD and CDN dollars per share) | $ / shares		$ 22.01
Expense from cash-settled share-based payment transactions | $		$ 11
Phantom restricted share units | TELUS Corporation (parent)
Number of restricted share units - Non-vested
Outstanding, beginning of year (in shares)	0	78,011	78,011	156,749
Granted (in shares)		0	0	24,757
Vested (in shares)		(59,549)	(59,549)	(85,154)
Issued in lieu of dividends (in shares)		0	0	0
Dividends (in shares)		1,568	1,568	5,023
Forfeited (in shares)		(20,030)	(20,030)	(23,364)
Outstanding, end of year (in shares)		0	0	78,011
Number of restricted share units - Vested
Vested (in shares)		59,549	59,549	85,154
Dividends (in shares)		(59,549)	(59,549)	(86,745)
Exercised (in shares)		0	0	1,591
Grant-date fair value
Outstanding, beginning of year (in USD and CDN dollars per share) | $ / shares	$ 0	$ 24.20		$ 24.17
Granted (in USD and CDN dollars per share) | $ / shares		0		27.58
Vested (in USD and CDN dollars per share) | $ / shares		24.13		23.96
Issued in lieu of dividends (in dollars per share) | $ / shares		24.13		25.22
Exercised (in USD and CDN dollars per share) | (per share)		30.85	$ 28.67	27.43
Forfeited (in USD and CDN dollars per share) | $ / shares		24.92		24.72
Outstanding, end of year (in USD and CDN dollars per share) | $ / shares		$ 0		$ 24.20
Expense from cash-settled share-based payment transactions | $			$ 2
Restricted Stock Units
Number of restricted share units - Non-vested
Outstanding, beginning of year (in shares)	1,218,796
Outstanding, end of year (in shares)	1,926,994	1,218,796	1,218,796
Performance Share Units
Number of restricted share units - Non-vested
Outstanding, beginning of year (in shares)	387,025
Outstanding, end of year (in shares)	688,752	387,025	387,025

Share-based compensation - Phan

Share-based compensation - Phantom TELUS Corporation restricted share units (Details)	12 Months Ended
	Dec. 31, 2023 shares
Restricted Stock Units | TELUS Corporation (parent)
share-based compensation
Vesting period	30 months
Restricted Stock Units | TELUS Corporation (parent) | Minimum
share-based compensation
Variable payout (as a percent)	0%
Restricted Stock Units | TELUS Corporation (parent) | Maximum
share-based compensation
Variable payout (as a percent)	150%
Common Share | Phantom restricted share units
share-based compensation
120000000	1
Common Share | Restricted Stock Units
share-based compensation
120000000	1

Share-based compensation - Shar

Share-based compensation - Share option awards (Details)	12 Months Ended
	Dec. 31, 2023 yr shares installment	Dec. 31, 2022 shares yr
share-based compensation
Number of vesting installments | installment	3
Expected lives (years) | yr		6.5
Share options granted (in shares) | shares	0	0
Equity share option awards | Graded-Vesting Method
share-based compensation
Vesting period	4 years
Number of vesting installments | installment	4
Expected lives (years) | yr	10
Phantom share option awards
share-based compensation
Vesting period	30 months
Minimum | Phantom share option awards
share-based compensation
Variable payout (as a percent)	0%
Maximum | Share option awards
share-based compensation
Exercise period	10 years
Maximum | Phantom share option awards
share-based compensation
Variable payout (as a percent)	100%

Share-based compensation - Sc_2

Share-based compensation - Schedule of share option awards (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) shares $ / shares	Dec. 31, 2022 USD ($) shares $ / shares	Dec. 31, 2021 shares $ / shares	Dec. 31, 2021 shares $ / shares
Share option awards, Non-vested
Granted (in shares)	0	0
Share option awards - US$ denominated
Share option awards, Non-vested
Outstanding, beginning of year (in shares)	580,715	1,084,185	654,633	654,633
Granted (in shares)			579,949	579,949
Vested (in shares)	(358,413)	(293,860)	(150,397)	(150,397)
Forfeited (in shares)	(2,202)	(209,610)
Outstanding, end of year (in shares)	220,100	580,715	1,084,185	1,084,185
Share option awards, Vested
Outstanding, beginning of year (in shares)	2,096,582	2,096,582	3,267,423	3,267,423
Vested (in shares)	358,413	293,860	150,397	150,397
Exercised (in shares)	(124,337)	(293,860)	(1,321,238)	(1,321,238)
Forfeited (in shares)	(13,975)
Outstanding, end of year (in shares)	2,316,683	2,096,582	2,096,582	2,096,582
Exercisable, end of year (in shares)	2,316,683
Share option awards, Weighted average exercise price
Outstanding, beginning of year (in dollars per share) | $ / shares	$ 10.27	$ 9.86	$ 6.23
Granted (in dollars per share) | $ / shares			25
Vested (in dollars per share) | $ / shares	6.43	8.46	5.78
Exercised (in dollars per share) | $ / shares	8.46	8.46	5.74
Forfeited (in USD and CDN dollars per share) | $ / shares	5.77	6.59
Outstanding, end of year (in dollars per share) | $ / shares	10.39	$ 10.27	$ 9.86
Exercisable, end of year (in dollars per share) | $ / shares	$ 9
Share option awards - Canadian $ denominated
Share option awards, Vested
Outstanding, beginning of year (in shares)			242,244	242,244
Exercised (in shares)			242,244	242,244
Share option awards, Weighted average exercise price
Outstanding, beginning of year (in dollars per share) | $ / shares				$ 4.75
Exercised (in dollars per share) | $ / shares				$ 4.75
Share Options and Phantom Share Options | Share-based Payment, Tranche One
Share option awards, Vested
Exercised (in shares)	0	(159,354)
Share option awards, Weighted average exercise price
Shares issued (in shares)		65,859
Share Options and Phantom Share Options | Share-based Payment, Tranche Two
Share option awards, Vested
Exercised (in shares)	(124,337)	(134,506)
Share option awards, Weighted average exercise price
Exercised (in dollars per share) | $ / shares	$ 14.81	$ 23.75
Expense from cash-settled share-based payment transactions | $	$ 2	$ 2
Share Option Awards Tranche A
Share option awards, Non-vested
Outstanding, beginning of year (in shares)	2,223,121
Outstanding, end of year (in shares)	2,096,582	2,223,121
Share option awards, Weighted average exercise price
Weighted average remaining contractual life	3 years	4 years 2 months 12 days
Share Option Awards Tranche A | Minimum
Share option awards, Weighted average exercise price
Exercise price (in dollars per share) | $ / shares	$ 4.87	$ 4.87
Share Option Awards Tranche A | Maximum
Share option awards, Weighted average exercise price
Exercise price (in dollars per share) | $ / shares	$ 8.95	$ 8.95
Share Option Awards Tranche B
Share option awards, Non-vested
Outstanding, beginning of year (in shares)	454,176
Outstanding, end of year (in shares)	440,201	454,176
Share option awards, Weighted average exercise price
Exercise price (in dollars per share) | $ / shares	$ 25	$ 25
Weighted average remaining contractual life	7 years 2 months 12 days	8 years 2 months 12 days

Share-based compensation - Weig

Share-based compensation - Weighted average assumptions (Details)	12 Months Ended
	Dec. 31, 2022 yr $ / shares
share-based compensation
Share option award fair value (in dollars per share) | $ / shares	$ 5.34
Risk free interest rate	0.73%
Expected lives (years) | yr	6.5
Expected volatility	19.30%
Dividend yield	0%

Share-based compensation - Othe

Share-based compensation - Other (Details) - Unit Appreciation Rights - WillowTree $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
share-based compensation
Future exercise period	3 years
Maximum
share-based compensation
Unit appreciation rights, granted, value	$ 120

Interest expense (Details)

Interest expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest expense
Interest on long-term debt, excluding lease liabilities	$ 104	$ 25	$ 27
Interest on lease liabilities	24	14	14
Amortization of financing fees and other	3	2	3
Interest accretion on provisions	13	0	0
Total	144	41	44
Foreign exchange
Total	$ 0	$ (7)	$ (1)

Income taxes - Expense composit

Income taxes - Expense composition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current income tax expense (recovery)
For current reporting year	$ 67	$ 96	$ 82
Adjustments recognized in the current year for income tax of prior years	(5)	1	1
Total	62	97	83
Deferred income tax expense (recovery)
Arising from the origination and reversal of temporary differences	(55)	(31)	(15)
Adjustments recognized in the current year for income tax of prior years	(2)	1	(4)
Total	(57)	(30)	(19)
Income tax expense	$ 5	$ 67	$ 64

Income taxes - Rate reconciliat

Income taxes - Rate reconciliations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of effective tax rate
Income taxes computed at applicable statutory rates	$ 5	$ 57	$ 32
Non-deductible items	0	9	16
Withholding and other taxes	18	23	18
Losses not recognized	1	7	6
Foreign tax differential	(12)	(30)	(3)
Adjustments recognized in the current year for income tax of prior years	(7)	2	(3)
Other	0	(1)	(2)
Income tax expense	$ 5	$ 67	$ 64
Reconciliation of effective tax rate (as a percent)
Applicable statutory rate (as a percent)	7.80%	22.70%	22.60%
Tax rate effect for non-tax deductible items (as a percent)	0%	3.60%	11.30%
Tax rate effect of withholding and other taxes (as a percent)	0.312	0.093	0.127
Tax rate effect of (gains) losses not recognized (as a percent)	0.017	0.028	0.042
Tax rate effect for foreign tax differential (as a percent)	(20.30%)	(12.00%)	(2.10%)
Tax rate effect of current period adjustments for tax of prior periods (as a percent)	(0.119)	0.008	(0.021)
Tax rate effect for other (as a percent)	0%	(0.40%)	(1.50%)
Tax rate for Income tax expense per consolidated statements of income and other comprehensive income (as a percent)	8.50%	26.80%	45.10%

Income taxes - Temporary differ

Income taxes - Temporary differences (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of temporary differences
Net income	$ (57)	$ (30)	$ (19)
Balance at end of period	0
Property, plant and equipment and intangible assets subject to amortization
Reconciliation of temporary differences
Balance at beginning of period	(276)	(316)
Net income	35	32
Other comprehensive income	0	8
Foreign currency translation	(3)	0
Balance at end of period	(327)	(276)	(316)
Acquired during the year & other	(83)
Net pension and share- based compensation amounts
Reconciliation of temporary differences
Balance at beginning of period	1	4
Net income	2	(3)
Other comprehensive income	0	0
Foreign currency translation	0	0
Balance at end of period	3	1	4
Acquired during the year & other	0
Debt and equity issue costs
Reconciliation of temporary differences
Balance at beginning of period	6	8
Net income	(2)	(2)
Other comprehensive income	0	0
Foreign currency translation	0	0
Balance at end of period	4	6	8
Acquired during the year & other	0
Provisions and other
Reconciliation of temporary differences
Balance at beginning of period	7	4
Net income	4	9
Other comprehensive income	4	(1)
Foreign currency translation	0	(5)
Balance at end of period	17	7	4
Acquired during the year & other	2
Non-capital loss carried forward
Reconciliation of temporary differences
Balance at beginning of period	10	15
Net income	16	(5)
Other comprehensive income	(2)	0
Foreign currency translation	0	0
Balance at end of period	38	10	15
Acquired during the year & other	14
Leases
Reconciliation of temporary differences
Balance at beginning of period	2	3
Net income	2	(1)
Other comprehensive income	0	0
Foreign currency translation	0	0
Balance at end of period	4	2	3
Acquired during the year & other	0
Net deferred income tax asset (liability)
Reconciliation of temporary differences
Balance at beginning of period	(250)	(282)
Net income	57	30
Other comprehensive income	2	7
Foreign currency translation	(3)	(5)
Balance at end of period	(261)	$ (250)	$ (282)
Acquired during the year & other	$ (67)

Income taxes - Other (Details)

Income taxes - Other (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Temporary differences
Tax losses incurred for which no deferred tax asset is recognized	$ 56	$ 53
Deferred tax liability (asset)	0
Benefits recognized for non-capital losses	1	2
Deferred tax assets	29	$ 14
Unused Tax Losses Dependent on Future Earnings
Temporary differences
Deferred tax assets	15
Indefinite
Temporary differences
Tax losses incurred for which no deferred tax asset is recognized	6
20 Years
Temporary differences
Tax losses incurred for which no deferred tax asset is recognized	$ 38
Carryforward period	20 years
5 Years
Temporary differences
Tax losses incurred for which no deferred tax asset is recognized	$ 12
Carryforward period	5 years

Other comprehensive income (Det

Other comprehensive income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Change in unrealized fair value of cash flow hedges
Accumulated balance at beginning	$ 32	$ (11)	$ (51)
Amount arising	(29)	48	41
Net	(27)	43	40
Income taxes	2	(5)	(1)
Accumulated balance at ending	5	32	(11)
Cumulative foreign currency translation adjustment
Accumulated balance at beginning	(44)	45	140
Amount arising	26	(89)	(95)
Net	26	(89)	(95)
Income taxes	0	0	0
Accumulated balance at ending	(18)	(44)	45
Employee defined benefit plan re- measurements
Net	1	3	0
Total	0	(43)	(55)
Accumulated other comprehensive income (loss)
Employee defined benefit plan re- measurements
Accumulated balance at beginning, accumulated other comprehensive income	(12)	34	89
Amount arising, accumulated other comprehensive income	(3)	(41)	(54)
Income taxes, accumulated other comprehensive income	2	(5)	(1)
Total	(1)	(46)	(55)
Accumulated balance at ending, accumulated other comprehensive income	$ (13)	$ (12)	$ 34

Earnings per share (Details)

Earnings per share (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Basic earnings per share [abstract]
Net income	$ 54	$ 183	$ 78
Weighted average number of equity shares outstanding (in shares)	274,000,000	266,000,000	264,000,000
Basic earnings per share (in dollars per share)	$ 0.20	$ 0.69	$ 0.30
Diluted earnings per share [abstract]
Net income	$ 54	$ 183	$ 78
After-tax impact of provisions for written put options	(3)	0	0
Fully diluted net income	$ 51	$ 183	$ 78
Weighted average number of equity shares outstanding (in shares)	274,000,000	266,000,000	264,000,000
Dilutive effect of share-based compensation (in shares)	3,000,000	4,000,000	3,000,000
Dilutive effect of provisions for written put options (in shares)	9,000,000	0	0
Diluted total weighted average number of common shares outstanding (in shares)	286,000,000	270,000,000	267,000,000
Diluted earnings per share (in dollars per share)	$ 0.18	$ 0.68	$ 0.29
Antidilutive awards (in shares)	440,201	0	0

Accounts receivable - Schedule

Accounts receivable - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]
Accounts receivable – billed	$ 278	$ 223
Accounts receivable – unbilled	194	201
Other receivables	28	5
Billed and unbilled trade receivables and other receivables	500	429
Allowance for doubtful accounts	(2)	(1)	$ (2)
Total	$ 498	$ 428

Accounts receivable - Age Analy

Accounts receivable - Age Analysis of Accounts Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Credit risk
Customer accounts receivable – billed, net of allowance for doubtful accounts	$ 276	$ 222
Accounts receivable – unbilled	194	201
Other receivables	28	5
Total	498	428
Less than 30 days past billing date
Credit risk
Customer accounts receivable – billed, net of allowance for doubtful accounts	174	154
30-60 days past billing date
Credit risk
Customer accounts receivable – billed, net of allowance for doubtful accounts	78	44
61-90 days past billing date
Credit risk
Customer accounts receivable – billed, net of allowance for doubtful accounts	11	12
More than 90 days past billing date
Credit risk
Customer accounts receivable – billed, net of allowance for doubtful accounts	$ 13	$ 12

Accounts receivable - Summary o

Accounts receivable - Summary of Activity Related to Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Subclassifications of assets, liabilities and equities [abstract]
Balance, beginning of year	$ 1	$ 2
Additions	1	0
Write-off	0	(1)
Balance, end of year	$ 2	$ 1

Financial instruments and man_3

Financial instruments and management of financial risks - Credit risk (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Credit risk
Maximum exposure (excluding income tax effects) to credit risk	$ 703	$ 666
Cash and cash equivalents
Credit risk
Maximum exposure (excluding income tax effects) to credit risk	127	125
Accounts receivable
Credit risk
Maximum exposure (excluding income tax effects) to credit risk	498	428
Due from affiliated companies
Credit risk
Maximum exposure (excluding income tax effects) to credit risk	62	81
Derivative assets
Credit risk
Maximum exposure (excluding income tax effects) to credit risk	$ 16	$ 32

Financial instruments and man_4

Financial instruments and management of financial risks - Liquidity risk (Details) $ in Millions	Dec. 31, 2023 USD ($)
Liquidity risk
Total	$ 2,947
Non- interest bearing financial liabilities
Liquidity risk
Contractual maturities, non-derivative liabilities	522
Due to affiliated companies
Liquidity risk
Contractual maturities, non-derivative liabilities	178
Long-term debt excluding leases
Liquidity risk
Contractual maturities, non-derivative liabilities	1,872
Leases
Liquidity risk
Contractual maturities, non-derivative liabilities	403
Interest rate swap agreement
Liquidity risk
Amounts to be exchanged, pay	0
Interest rate swap agreement	0
2024
Liquidity risk
Total	713
2024 | Non- interest bearing financial liabilities
Liquidity risk
Contractual maturities, non-derivative liabilities	292
2024 | Due to affiliated companies
Liquidity risk
Contractual maturities, non-derivative liabilities	178
2024 | Long-term debt excluding leases
Liquidity risk
Contractual maturities, non-derivative liabilities	169
2024 | Leases
Liquidity risk
Contractual maturities, non-derivative liabilities	86
2024 | Interest rate swap agreement
Liquidity risk
Amounts to be exchanged, pay	2
Interest rate swap agreement	2
2025
Liquidity risk
Total	254
2025 | Non- interest bearing financial liabilities
Liquidity risk
Contractual maturities, non-derivative liabilities	19
2025 | Long-term debt excluding leases
Liquidity risk
Contractual maturities, non-derivative liabilities	164
2025 | Leases
Liquidity risk
Contractual maturities, non-derivative liabilities	78
2026
Liquidity risk
Total	262
2026 | Non- interest bearing financial liabilities
Liquidity risk
Contractual maturities, non-derivative liabilities	41
2026 | Long-term debt excluding leases
Liquidity risk
Contractual maturities, non-derivative liabilities	160
2026 | Leases
Liquidity risk
Contractual maturities, non-derivative liabilities	68
2026 | Interest rate swap agreement
Liquidity risk
Amounts to be exchanged, pay	1
Interest rate swap agreement	1
2027
Liquidity risk
Total	331
2027 | Non- interest bearing financial liabilities
Liquidity risk
Contractual maturities, non-derivative liabilities	131
2027 | Long-term debt excluding leases
Liquidity risk
Contractual maturities, non-derivative liabilities	155
2027 | Leases
Liquidity risk
Contractual maturities, non-derivative liabilities	52
2027 | Interest rate swap agreement
Liquidity risk
Amounts to be exchanged, pay	1
Interest rate swap agreement	1
2028
Liquidity risk
Total	1,307
2028 | Non- interest bearing financial liabilities
Liquidity risk
Contractual maturities, non-derivative liabilities	39
2028 | Long-term debt excluding leases
Liquidity risk
Contractual maturities, non-derivative liabilities	1,224
2028 | Leases
Liquidity risk
Contractual maturities, non-derivative liabilities	39
Thereafter
Liquidity risk
Total	80
Thereafter | Non- interest bearing financial liabilities
Liquidity risk
Contractual maturities, non-derivative liabilities	0
Thereafter | Leases
Liquidity risk
Contractual maturities, non-derivative liabilities	80
Currency swap agreement amounts to be exchanged | Currency swap agreement amounts to be exchanged
Liquidity risk
Amounts to be exchanged, (receive)	606
Amounts to be exchanged, pay	578
Interest rate swap agreement	578
Currency swap agreement amounts to be exchanged | 2024 | Currency swap agreement amounts to be exchanged
Liquidity risk
Amounts to be exchanged, (receive)	146
Amounts to be exchanged, pay	132
Interest rate swap agreement	132
Currency swap agreement amounts to be exchanged | 2025 | Currency swap agreement amounts to be exchanged
Liquidity risk
Amounts to be exchanged, (receive)	41
Amounts to be exchanged, pay	34
Interest rate swap agreement	34
Currency swap agreement amounts to be exchanged | 2026 | Currency swap agreement amounts to be exchanged
Liquidity risk
Amounts to be exchanged, (receive)	39
Amounts to be exchanged, pay	33
Interest rate swap agreement	33
Currency swap agreement amounts to be exchanged | 2027 | Currency swap agreement amounts to be exchanged
Liquidity risk
Amounts to be exchanged, (receive)	38
Amounts to be exchanged, pay	32
Interest rate swap agreement	32
Currency swap agreement amounts to be exchanged | 2028 | Currency swap agreement amounts to be exchanged
Liquidity risk
Amounts to be exchanged, (receive)	342
Amounts to be exchanged, pay	347
Interest rate swap agreement	$ 347

Financial instruments and man_5

Financial instruments and management of financial risks - Market risk (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest rate risk
Market risks
Basis point change of reasonably possible increase in unobservable input, liabilities	2,500%	2,500%	2,500%
Basis point change of reasonably possible decrease in unobservable input, liabilities	2,500%	2,500%	2,500%
European euros | Currency risk
Market risks
Percentage of reasonably possible increase in market risk variable	10%	10%	10%
Percentage of reasonably possible decrease in unobservable input, liabilities	10%	10%	10%
Net income sensitivity to increase in risk variable	$ 7	$ 14	$ 11
Other comprehensive income sensitivity to increase in risk variable	(41)	(44)	(36)
Comprehensive income sensitivity to increase in risk variable	(34)	(30)	(25)
Net income sensitivity to decrease in risk variable	(7)	(14)	(11)
Other comprehensive income sensitivity to decrease in risk variable	41	44	36
Comprehensive income sensitivity to decrease in risk variable	$ 34	$ 30	$ 25
Philippine peso | Currency risk
Market risks
Percentage of reasonably possible increase in market risk variable	10%	10%	10%
Percentage of reasonably possible decrease in unobservable input, liabilities	10%	10%	10%
Net income sensitivity to increase in risk variable	$ (3)	$ (2)	$ (1)
Other comprehensive income sensitivity to increase in risk variable	0	0	0
Comprehensive income sensitivity to increase in risk variable	(3)	(2)	(1)
Net income sensitivity to decrease in risk variable	3	2	1
Other comprehensive income sensitivity to decrease in risk variable	0	0	0
Comprehensive income sensitivity to decrease in risk variable	$ 3	$ 2	$ 1
Canadian Dollars | Currency risk
Market risks
Percentage of reasonably possible increase in market risk variable	10%	10%	10%
Percentage of reasonably possible decrease in unobservable input, liabilities	10%	10%	10%
Net income sensitivity to increase in risk variable	$ 10	$ 8	$ 14
Other comprehensive income sensitivity to increase in risk variable	0	0	0
Comprehensive income sensitivity to increase in risk variable	10	8	14
Net income sensitivity to decrease in risk variable	(12)	(8)	(14)
Other comprehensive income sensitivity to decrease in risk variable	0	0	0
Comprehensive income sensitivity to decrease in risk variable	(12)	(8)	(14)
U.S dollars | Interest rate risk
Market risks
Net income sensitivity to increase in risk variable	(3)	(1)	(2)
Other comprehensive income sensitivity to increase in risk variable	0	0	0
Comprehensive income sensitivity to increase in risk variable	(3)	(1)	(2)
Net income sensitivity to decrease in risk variable	3	1	2
Other comprehensive income sensitivity to decrease in risk variable	0	0	0
Comprehensive income sensitivity to decrease in risk variable	$ 3	$ 1	$ 2

Financial instruments and man_6

Financial instruments and management of financial risks - Fair Values Derivatives (Details)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)	Dec. 31, 2023 PHP (₱)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2022 PHP (₱)
Disclosure of detailed information about financial instruments [line items]
Current assets, fair value and carrying value	$ 16,000,000			$ 19,000,000
Non-current assets, fair value and carrying value	0			13,000,000
Current liabilities, fair value and carrying value	0			1,000,000
Non-current liabilities, fair value and carrying value	$ 12,000,000			$ 0
Current assets derivatives | Currency risk related to business acquisition | Cash flow hedging item (HFH) | European euros
Disclosure of detailed information about financial instruments [line items]
Maximum maturity date	2024	2024	2024	2023	2023	2023
Current assets, notional amount	$ 22,000,000			$ 21,000,000
Current assets, fair value and carrying value	12,000,000			19,000,000
Price (in usd/eur per share)	$ 1	€ 0.92		$ 1	€ 0.86
Current assets derivatives | Currency risk related to purchases | HFT | Philippine peso
Disclosure of detailed information about financial instruments [line items]
Maximum maturity date	2024	2024	2024	2023	2023	2023
Current assets, notional amount	$ 81,000,000			$ 53,000,000
Current assets, fair value and carrying value	2,000,000			0
Price (in usd/eur per share)	$ 1		₱ 56.32	$ 1		₱ 56.90
Current assets derivatives | Interest rate risk non fixed rate credit facility amounts drawn | Cash flow hedging item (HFH)
Disclosure of detailed information about financial instruments [line items]
Interest rate on borrowings	3.52%
Current assets derivatives | Interest rate risk non fixed rate credit facility amounts drawn | Cash flow hedging item (HFH) | U.S dollars
Disclosure of detailed information about financial instruments [line items]
Maximum maturity date	2024	2024	2024	—	—	—
Current assets, notional amount	$ 9,000,000			$ 0
Current assets, fair value and carrying value	$ 2,000,000			$ 0
Derivative assets non-current | Currency risk related to business acquisition | Cash flow hedging item (HFH) | European euros
Disclosure of detailed information about financial instruments [line items]
Maximum maturity date	—	—	—	2025	2025	2025
Price (in usd/eur per share)				$ 1	€ 0.86
Non-current assets, notional amount	$ 0			341,000,000
Non-current assets, fair value and carrying value	$ 0			$ 13,000,000
Current liabilities derivatives | Currency risk related to purchases | HFT | Philippine peso
Disclosure of detailed information about financial instruments [line items]
Maximum maturity date	2024	2024	2024	2023	2023	2023
Price (in usd/eur per share)	$ 1		₱ 54.94	$ 1		₱ 53.55
Current liabilities, notional amount	17,000,000			50,000,000
Current liabilities, fair value and carrying value	$ 0			$ 1,000,000
Non-current liabilities derivatives | Currency risk related to business acquisition | Cash flow hedging item (HFH) | European euros
Disclosure of detailed information about financial instruments [line items]
Maximum maturity date	2028	2028	2028
Price (in usd/eur per share)	$ 1	€ 0.92
Non-current liabilities, notional amount	409,000,000
Non-current liabilities, fair value and carrying value	$ 10,000,000
Non-current liabilities derivatives | Interest rate risk non fixed rate credit facility amounts drawn | Cash flow hedging item (HFH)
Disclosure of detailed information about financial instruments [line items]
Interest rate on borrowings	3.52%
Non-current liabilities derivatives | Interest rate risk non fixed rate credit facility amounts drawn | Cash flow hedging item (HFH) | U.S dollars
Disclosure of detailed information about financial instruments [line items]
Maximum maturity date	2028	2028	2028	—	—	—
Non-current liabilities, notional amount	$ 155,000,000			$ 0
Non-current liabilities, fair value and carrying value	$ 2,000,000			$ 0
Derivative assets | Cash flow hedging item (HFH)
Disclosure of detailed information about financial instruments [line items]
Hedge ratio	100%	100%	100%	100%	100%	100%

Financial instruments and man_7

Financial instruments and management of financial risks - Derivative gains and losses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative assets | Interest rate risk
Disclosure of detailed information about financial instruments [line items]
Amount of gain (loss) recognized in other comprehensive income (effective portion)	$ 2,000,000	$ 1,000,000	$ 0
Gain (loss) reclassified from other comprehensive income to income (effective portion)	2,000,000	(1,000,000)	(3,000,000)
Derivatives held for hedging
Disclosure of detailed information about financial instruments [line items]
Amount of gain (loss) recognized in other comprehensive income (effective portion)	(27,000,000)	38,000,000	38,000,000
Gain (loss) reclassified from other comprehensive income to income (effective portion)	2,000,000	(10,000,000)	(3,000,000)
Derivatives held for hedging | Currency risk
Disclosure of detailed information about financial instruments [line items]
Amount of gain (loss) recognized in other comprehensive income (effective portion)	(29,000,000)	37,000,000	38,000,000
Gain (loss) reclassified from other comprehensive income to income (effective portion)	0	(9,000,000)	0
Cash flow hedging item (HFH) | Derivatives held for hedging
Disclosure of detailed information about financial instruments [line items]
Ineffective portion of derivative instruments classified as cash flow hedging items	$ 0	$ 0	$ 0

Property, plant and equipment_2

Property, plant and equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Property, plant and equipment
Property, plant and equipment at beginning of period	$ 449
Additions from acquisition	34
Property, plant and equipment at end of period	517	$ 449
Owned Assets
Property, plant and equipment
Property, plant and equipment at beginning of period	233
Additions from acquisition	15
Property, plant and equipment at end of period	252	233
Owned Assets | Network assets
Property, plant and equipment
Property, plant and equipment at beginning of period	18
Property, plant and equipment at end of period	20	18
Owned Assets | Buildings and leasehold improvements
Property, plant and equipment
Property, plant and equipment at beginning of period	85
Property, plant and equipment at end of period	84	85
Owned Assets | Computer equipment, furniture, and other
Property, plant and equipment
Property, plant and equipment at beginning of period	97
Property, plant and equipment at end of period	111	97
Owned Assets | Assets under construction
Property, plant and equipment
Property, plant and equipment at beginning of period	33
Property, plant and equipment at end of period	37	33
Right-of-use lease assets
Property, plant and equipment
Property, plant and equipment at beginning of period	449
Property, plant and equipment at end of period	517	449
Right-of-use lease assets | Buildings and leasehold improvements
Property, plant and equipment
Property, plant and equipment at beginning of period	216
Property, plant and equipment at end of period	265	216
At cost | Owned Assets
Property, plant and equipment
Property, plant and equipment at beginning of period	477	424
Additions	79	92
Additions from acquisition		3
Dispositions, retirements and other	10	(24)
Transfers	0	0
Foreign exchange	2	(18)
Property, plant and equipment at end of period	563	477
At cost | Owned Assets | Network assets
Property, plant and equipment
Property, plant and equipment at beginning of period	49	48
Additions	3	1
Additions from acquisition	0	0
Dispositions, retirements and other	0	(1)
Transfers	7	3
Foreign exchange	0	(2)
Property, plant and equipment at end of period	59	49
At cost | Owned Assets | Buildings and leasehold improvements
Property, plant and equipment
Property, plant and equipment at beginning of period	138	119
Additions	3	8
Additions from acquisition	10	2
Dispositions, retirements and other	1	(8)
Transfers	8	22
Foreign exchange	1	(5)
Property, plant and equipment at end of period	159	138
At cost | Owned Assets | Computer equipment, furniture, and other
Property, plant and equipment
Property, plant and equipment at beginning of period	257	231
Additions	19	22
Additions from acquisition	5	1
Dispositions, retirements and other	9	(15)
Transfers	35	27
Foreign exchange	1	(9)
Property, plant and equipment at end of period	308	257
At cost | Owned Assets | Assets under construction
Property, plant and equipment
Property, plant and equipment at beginning of period	33	26
Additions	54	61
Additions from acquisition	0	0
Dispositions, retirements and other	0	0
Transfers	(50)	(52)
Foreign exchange	0	(2)
Property, plant and equipment at end of period	37	33
At cost | Right-of-use lease assets
Property, plant and equipment
Property, plant and equipment at beginning of period	862	741
Additions	171	179
Additions from acquisition		5
Dispositions, retirements and other	23	(35)
Transfers	0	0
Foreign exchange	6	(28)
Property, plant and equipment at end of period	1,050	862
At cost | Right-of-use lease assets | Buildings and leasehold improvements
Property, plant and equipment
Property, plant and equipment at beginning of period	385	317
Additions	92	87
Additions from acquisition	19	2
Dispositions, retirements and other	13	(11)
Transfers	0	0
Foreign exchange	4	(10)
Property, plant and equipment at end of period	487	385
Accumulated depreciation | Owned Assets
Property, plant and equipment
Property, plant and equipment at beginning of period	(244)	(209)
Dispositions, retirements and other	(10)	(24)
Foreign exchange	1	(8)
Depreciation	76	67
Property, plant and equipment at end of period	(311)	(244)
Accumulated depreciation | Owned Assets | Network assets
Property, plant and equipment
Property, plant and equipment at beginning of period	(31)	(26)
Dispositions, retirements and other	0	1
Foreign exchange	0	(1)
Depreciation	8	7
Property, plant and equipment at end of period	(39)	(31)
Accumulated depreciation | Owned Assets | Buildings and leasehold improvements
Property, plant and equipment
Property, plant and equipment at beginning of period	(53)	(45)
Dispositions, retirements and other	1	8
Foreign exchange	1	(1)
Depreciation	22	17
Property, plant and equipment at end of period	(75)	(53)
Accumulated depreciation | Owned Assets | Computer equipment, furniture, and other
Property, plant and equipment
Property, plant and equipment at beginning of period	(160)	(138)
Dispositions, retirements and other	9	15
Foreign exchange	0	(6)
Depreciation	46	43
Property, plant and equipment at end of period	(197)	(160)
Accumulated depreciation | Owned Assets | Assets under construction
Property, plant and equipment
Property, plant and equipment at beginning of period	0	0
Dispositions, retirements and other	0	0
Foreign exchange	0	0
Depreciation	0	0
Property, plant and equipment at end of period	0	0
Accumulated depreciation | Right-of-use lease assets
Property, plant and equipment
Property, plant and equipment at beginning of period	(413)	(336)
Dispositions, retirements and other	(23)	(35)
Foreign exchange	2	(12)
Depreciation	141	124
Property, plant and equipment at end of period	(533)	(413)
Accumulated depreciation | Right-of-use lease assets | Buildings and leasehold improvements
Property, plant and equipment
Property, plant and equipment at beginning of period	(169)	(127)
Dispositions, retirements and other	13	11
Foreign exchange	1	(4)
Depreciation	65	57
Property, plant and equipment at end of period	$ (222)	$ (169)

Intangible assets and goodwil_2

Intangible assets and goodwill - Schedule of Intangible assets and goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Intangible assets and goodwill
Balance at beginning of the year	$ 2,358
Amortization	(183)	$ (134)	$ (142)
Balance at end of the year	3,509	2,358
At cost
Intangible assets and goodwill
Balance at beginning of the year	2,713	2,776
Additions	14	12
Additions from acquisition	1,293	9
Dispositions and other	(34)	(11)
Foreign exchange	(33)	73
Balance at end of the year	4,019	2,713	2,776
Accumulated amortization
Intangible assets and goodwill
Balance at beginning of the year	(355)	(238)
Amortization	183	134
Dispositions and other	34	11
Foreign exchange	6	(6)
Balance at end of the year	(510)	(355)	(238)
Total intangible assets
Intangible assets and goodwill
Balance at beginning of the year	1,008
Balance at end of the year	1,546	1,008
Total intangible assets | At cost
Intangible assets and goodwill
Balance at beginning of the year	1,363	1,396
Additions	14	12
Additions from acquisition	694	0
Dispositions and other	(34)	(11)
Foreign exchange	(19)	34
Balance at end of the year	2,056	1,363	1,396
Total intangible assets | Accumulated amortization
Intangible assets and goodwill
Balance at beginning of the year	(355)	(238)
Amortization	183	134
Dispositions and other	34	11
Foreign exchange	6	(6)
Balance at end of the year	(510)	(355)	(238)
Customer relationships
Intangible assets and goodwill
Balance at beginning of the year	887
Balance at end of the year	1,362	887
Customer relationships | At cost
Intangible assets and goodwill
Balance at beginning of the year	1,151	1,182
Additions	0	0
Additions from acquisition	602	0
Dispositions and other	0	0
Foreign exchange	(16)	31
Balance at end of the year	1,769	1,151	1,182
Customer relationships | Accumulated amortization
Intangible assets and goodwill
Balance at beginning of the year	(264)	(173)
Amortization	138	96
Dispositions and other	0	0
Foreign exchange	5	(5)
Balance at end of the year	(407)	(264)	(173)
Crowdsource assets
Intangible assets and goodwill
Balance at beginning of the year	90
Balance at end of the year	75	90
Crowdsource assets | At cost
Intangible assets and goodwill
Balance at beginning of the year	120	120
Additions	0	0
Additions from acquisition	0	0
Dispositions and other	0	0
Foreign exchange	0	0
Balance at end of the year	120	120	120
Crowdsource assets | Accumulated amortization
Intangible assets and goodwill
Balance at beginning of the year	(30)	(15)
Amortization	15	15
Dispositions and other	0	0
Foreign exchange	0	0
Balance at end of the year	(45)	(30)	(15)
Software
Intangible assets and goodwill
Balance at beginning of the year	24
Balance at end of the year	30	24
Software | At cost
Intangible assets and goodwill
Balance at beginning of the year	57	57
Additions	14	12
Additions from acquisition	0	0
Dispositions and other	(9)	(11)
Foreign exchange	(1)	1
Balance at end of the year	63	57	57
Software | Accumulated amortization
Intangible assets and goodwill
Balance at beginning of the year	(33)	(31)
Amortization	9	13
Dispositions and other	9	11
Foreign exchange	0	0
Balance at end of the year	(33)	(33)	(31)
Brand
Intangible assets and goodwill
Balance at beginning of the year	7
Balance at end of the year	79	7
Brand | At cost
Intangible assets and goodwill
Balance at beginning of the year	35	37
Additions	0	0
Additions from acquisition	92	0
Dispositions and other	(25)	0
Foreign exchange	(2)	2
Balance at end of the year	104	35	37
Brand | Accumulated amortization
Intangible assets and goodwill
Balance at beginning of the year	(28)	(19)
Amortization	21	10
Dispositions and other	25	0
Foreign exchange	1	(1)
Balance at end of the year	(25)	(28)	(19)
Goodwill
Intangible assets and goodwill
Balance at beginning of the year	1,350
Balance at end of the year	1,963	1,350
Goodwill | At cost
Intangible assets and goodwill
Balance at beginning of the year	1,350	1,380
Additions	0	0
Additions from acquisition	599	9
Dispositions and other	0	0
Foreign exchange	(14)	39
Balance at end of the year	1,963	1,350	1,380
Goodwill | Accumulated amortization
Intangible assets and goodwill
Balance at beginning of the year	0	0
Amortization	0	0
Dispositions and other	0	0
Foreign exchange	0	0
Balance at end of the year	$ 0	$ 0	$ 0

Intangible assets and goodwil_3

Intangible assets and goodwill - Narrative (Details)		3 Months Ended	12 Months Ended
	Jan. 03, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) business	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Intangible assets and goodwill
Goodwill impairment			$ 0	$ 0	$ 0
Period over which management has projected cash flows			5 years
Discount rates applied to cash flow projections		9.80%	9.80%	9.50%	9%
Growth rates applied to cash flow projections		3%	3%	3%	3%
Goodwill		$ 1,963,000,000	$ 1,963,000,000	$ 1,350,000,000
WillowTree
Intangible assets and goodwill
Ownership interest in businesses acquired	86%
Ownership interest maintained by acquired entity management	0.14
Percentage of subordinate voting share	0.70
Net assets acquired	$ 1,175,000,000	1,175,000,000	1,175,000,000
Cash transferred	856,000,000	856,000,000	856,000,000
Business acquisition consideration transferred, value of shares	125,000,000		125,000,000
Provisions	194,000,000		194,000,000
Net identifiable assets acquired		576,000,000	576,000,000
Goodwill	$ 97,000,000
Revenue arising from contracts with customers			186,000,000
Net income			$ (93,000,000)
WillowTree | Written Put Options Related to Retained Equity Interests
Intangible assets and goodwill
Future exercise period			3 years
Other
Intangible assets and goodwill
Net assets acquired		2,000,000	$ 2,000,000
Cash transferred		1,000,000	1,000,000
Business acquisition consideration transferred, value of shares			$ 0
Number of businesses acquired | business			2
Provisions			$ 1,000,000
Net identifiable assets acquired		2,000,000	2,000,000
Goodwill		0	0
Revenue arising from contracts with customers			4,000,000
Net income		0	0
Increase in revenue		$ 1,000,000
Other | Maximum
Intangible assets and goodwill
Earn-out payout			$ 12,000,000

Intangible assets and goodwil_4

Intangible assets and goodwill - Business acquisitions (Details) - USD ($) $ in Millions		12 Months Ended
	Jan. 03, 2023	Dec. 31, 2023
2023 Acquisitions
Business acquisition [line items]
Owned assets		$ 15
Current assets
Cash		5
Accounts receivable		63
Prepaid and other assets		3
Total current assets		71
Non-current assets
Owned assets		15
Right-of-use lease assets		19
Identifiable intangible assets recognised as of acquisition date		694
Non-current assets recognised as of acquisition date		728
Identifiable assets acquired recognized as of acquisition date		799
Current liabilities
Accounts payable and accrued liabilities		43
Income and other taxes payable		1
Current maturities of long-term debt		92
Current liabilities recognised as of acquisition date		136
Non-current liabilities
Long-term debt		16
Deferred income taxes		69
Non-current liabilities recognised as of acquisition date		85
Total liabilities assumed		221
Net identifiable assets acquired		578
Goodwill		599
Net assets acquired		1,177
Acquisition-date fair value of total consideration transferred [abstract]
Cash transferred		857
Provisions		195
Subordinate voting shares		125
Net assets acquired		1,177
WillowTree
Business acquisition [line items]
Owned assets		15
Current assets
Cash		5
Accounts receivable		62
Prepaid and other assets		3
Total current assets		70
Non-current assets
Owned assets		15
Right-of-use lease assets		19
Identifiable intangible assets recognised as of acquisition date		692
Non-current assets recognised as of acquisition date		726
Identifiable assets acquired recognized as of acquisition date		796
Current liabilities
Accounts payable and accrued liabilities		43
Income and other taxes payable		1
Current maturities of long-term debt		91
Current liabilities recognised as of acquisition date		135
Non-current liabilities
Long-term debt		16
Deferred income taxes		69
Non-current liabilities recognised as of acquisition date		85
Total liabilities assumed		220
Net identifiable assets acquired		576
Goodwill		599
Net assets acquired	$ 1,175	1,175
Acquisition-date fair value of total consideration transferred [abstract]
Cash transferred	856	856
Provisions	194	194
Subordinate voting shares	125	125
Net assets acquired	$ 1,175	1,175
Other
Business acquisition [line items]
Owned assets		0
Current assets
Cash		0
Accounts receivable		1
Prepaid and other assets		0
Total current assets		1
Non-current assets
Owned assets		0
Right-of-use lease assets		0
Identifiable intangible assets recognised as of acquisition date		2
Non-current assets recognised as of acquisition date		2
Identifiable assets acquired recognized as of acquisition date		3
Current liabilities
Accounts payable and accrued liabilities		0
Income and other taxes payable		0
Current maturities of long-term debt		1
Current liabilities recognised as of acquisition date		1
Non-current liabilities
Long-term debt		0
Deferred income taxes		0
Non-current liabilities recognised as of acquisition date		0
Total liabilities assumed		1
Net identifiable assets acquired		2
Goodwill		0
Net assets acquired		2
Acquisition-date fair value of total consideration transferred [abstract]
Cash transferred		1
Provisions		1
Subordinate voting shares		0
Net assets acquired		$ 2
Customer relationships
Acquisition-date fair value of total consideration transferred [abstract]
Useful life of intangible assets	15 years
Brand Names, And Other Intangible Assets | Minimum
Acquisition-date fair value of total consideration transferred [abstract]
Useful life of intangible assets	3 years
Brand Names, And Other Intangible Assets | Maximum
Acquisition-date fair value of total consideration transferred [abstract]
Useful life of intangible assets	10 years

Provisions - (Details)

Provisions - (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Provisions
Balance at beginning of year	$ 3	$ 5
Reversals	(3)	(2)
Additions	210
Use	(11)
Revaluations	(20)
Interest effect and other	14
Balance at end of year	193	3
Current	2	1
Non-current	191	2
Employee related
Provisions
Balance at beginning of year	0	0
Reversals	(2)	0
Additions	14
Use	(11)
Revaluations	0
Interest effect and other	0
Balance at end of year	1	0
Current	1	0
Non-current	0	0
Written put options
Provisions
Balance at beginning of year	0	0
Reversals	0	0
Additions	194
Use	0
Revaluations	(20)
Interest effect and other	14
Balance at end of year	188	0
Current	0	0
Non-current	188	0
Other
Provisions
Balance at beginning of year	3	5
Reversals	(1)	(2)
Additions	2
Use	0
Revaluations	0
Interest effect and other	0
Balance at end of year	4	3
Current	1	1
Non-current	$ 3	$ 2

Long-term debt - Details of lon

Long-term debt - Details of long-term debt (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Details of long-term debt
Long-term debt excluding Lease liabilities	$ 1,452	$ 728
Lease liabilities	298	236
Long-term debt	1,750	964
Current	122	83
Non-current	1,628	881
Credit facility
Details of long-term debt
Gross borrowings	1,463	742
Deferred debt transaction costs	$ (11)	$ (14)

Long-term debt - Credit facilit

Long-term debt - Credit facility (Details) - USD ($) $ in Millions	Dec. 31, 2023	Jan. 03, 2023	Dec. 31, 2022
Credit facility
Long-term debt maturities
Available	$ 492		$ 1,258
Outstanding	1,463		742
Total	1,955	$ 2,000	2,000
Credit facility | Other lenders
Long-term debt maturities
Outstanding	1,358		689
Credit facility | TELUS Corporation
Long-term debt maturities
Outstanding	105		53
Revolving component
Long-term debt maturities
Available	492		658
Outstanding	308		142
Total	800	800	800
Revolving component | Other lenders
Long-term debt maturities
Outstanding	286		132
Revolving component | TELUS Corporation
Long-term debt maturities
Outstanding	22		10
Term loan components
Long-term debt maturities
Available			600
Outstanding	1,155		600
Total	$ 1,155	$ 1,200	1,200
Fixed interest rate	3.52%
Term loan components | Other lenders
Long-term debt maturities
Outstanding	$ 1,072		557
Term loan components | TELUS Corporation
Long-term debt maturities
Outstanding	$ 83		$ 43

Long-term debt - Narrative (Det

Long-term debt - Narrative (Details) $ in Millions		12 Months Ended
	Jan. 03, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Disclosure of detailed information about borrowings [line items]
Long-term debt issued		$ 1,161	$ 411	$ 71
Minimum acquisition aggregate cash consideration threshold to increase the maximum permitted net debt to EBIDTA ratio		$ 250
Weighted average interest rate		9.87%
Minimum
Disclosure of detailed information about borrowings [line items]
Operating cash flow to debt service ratio		1.50
2024 | Acquisition with aggregate cash consideration greater than $60 million
Disclosure of detailed information about borrowings [line items]
Net debt to EBITDA ratio		4.25
Second Year | Acquisition with aggregate cash consideration greater than $60 million
Disclosure of detailed information about borrowings [line items]
Net debt to EBITDA ratio		3.75
Thereafter | Acquisition with aggregate cash consideration greater than $60 million
Disclosure of detailed information about borrowings [line items]
Net debt to EBITDA ratio		3.25
Later than eight fiscal quarters | Maximum
Disclosure of detailed information about borrowings [line items]
Operating cash flow to debt service ratio		0.50
Credit facility
Disclosure of detailed information about borrowings [line items]
Maximum aggregate amount of credit facility	$ 2,000	$ 1,955	$ 2,000
Long-term debt issued	963
Effective interest rate		7.46%	6.67%
Percentage of principal advance required to be repaid each year of the term of the agreement		1.25%
Revolving component
Disclosure of detailed information about borrowings [line items]
Maximum aggregate amount of credit facility	800	$ 800	$ 800
Long-term debt issued	363
Term loan components
Disclosure of detailed information about borrowings [line items]
Maximum aggregate amount of credit facility	1,200	$ 1,155	$ 1,200
Long-term debt issued	$ 600

Long-term debt - Long-term debt

Long-term debt - Long-term debt maturities (Details) $ in Millions	Dec. 31, 2023 USD ($)
Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	$ 1,761
Future cash outflows in respect of associated interest and like carrying costs	514
Undiscounted contractual maturities	2,275
U.S dollars | Long-term debt, excluding leases
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	1,463
Future cash outflows in respect of associated interest and like carrying costs	409
Undiscounted contractual maturities	1,872
U.S dollars | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	106
Future cash outflows in respect of associated interest and like carrying costs	54
Undiscounted contractual maturities	160
U.S dollars | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	1,569
Future cash outflows in respect of associated interest and like carrying costs	463
Undiscounted contractual maturities	2,032
European euros | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	77
Future cash outflows in respect of associated interest and like carrying costs	16
Undiscounted contractual maturities	93
Other currencies | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	115
Future cash outflows in respect of associated interest and like carrying costs	35
Undiscounted contractual maturities	150
2024 | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	118
2024 | U.S dollars | Long-term debt, excluding leases
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	60
2024 | U.S dollars | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	18
2024 | U.S dollars | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	78
2024 | European euros | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	16
2024 | Other currencies | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	24
2025 | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	116
2025 | U.S dollars | Long-term debt, excluding leases
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	60
2025 | U.S dollars | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	19
2025 | U.S dollars | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	79
2025 | European euros | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	15
2025 | Other currencies | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	22
2026 | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	109
2026 | U.S dollars | Long-term debt, excluding leases
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	60
2026 | U.S dollars | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	19
2026 | U.S dollars | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	79
2026 | European euros | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	10
2026 | Other currencies | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	20
2027 | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	99
2027 | U.S dollars | Long-term debt, excluding leases
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	60
2027 | U.S dollars | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	16
2027 | U.S dollars | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	76
2027 | European euros | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	5
2027 | Other currencies | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	18
2028 | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	1,252
2028 | U.S dollars | Long-term debt, excluding leases
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	1,223
2028 | U.S dollars | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	10
2028 | U.S dollars | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	1,233
2028 | European euros | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	4
2028 | Other currencies | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	15
Thereafter | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	67
Thereafter | U.S dollars | Long-term debt, excluding leases
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	0
Thereafter | U.S dollars | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	24
Thereafter | U.S dollars | Long-term debt
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	24
Thereafter | European euros | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	27
Thereafter | Other currencies | Lease liabilities
Long-term debt maturities
Future cash outflows in respect of composite long-term debt principal repayments	$ 16

Share capital - Narrative (Deta

Share capital - Narrative (Details) $ / shares in Units, shares in Millions, $ in Millions				3 Months Ended	12 Months Ended
	Dec. 20, 2023 shares	Jan. 03, 2023 shares	Feb. 03, 2021 USD ($) $ / shares shares	Sep. 30, 2021 $ / shares shares	Dec. 31, 2023 Vote / shares shares	Dec. 31, 2021 USD ($)
Common Share capital
Common shares issued (in shares)			21
Share issue price (in dollars per share) | $ / shares			$ 25
Share issue related cost | $						$ 25
Subordinate voting shares
Common Share capital
Number of votes per common share | Vote / shares					1
Common shares issued (in shares)				17
Share issue price (in dollars per share) | $ / shares				$ 34
Subordinate voting shares | WillowTree
Common Share capital
Common shares issued (in shares)		6
Multiple voting shares
Common Share capital
Number of votes per common share | Vote / shares					10
Share split ratio			4.5		4.5
Multiple voting shares | Baring Private Equity Asia
Common Share capital
Common shares issued (in shares)			82
Shares issued (in shares)			22
Common shares converted (in shares)	33
Proportion of voting rights held by non-controlling interests	10.50%
Initial Public Offering
Common Share capital
Common shares issued (in shares)			21
Share issue price (in dollars per share) | $ / shares			$ 25
Gross proceeds from issuing shares | $			$ 525
Proceeds from issuing shares | $			500
Share issue related cost | $			34
Deferred tax expense (income) | $			$ 9
Initial Public Offering | Baring Private Equity Asia
Common Share capital
Common shares sold (in shares)			22
Multiple voting shares to subordinate voting shares
Common Share capital
Number of shares converted to subordinate voting shares (in shares)				14
Unissued Subordinate Voting Shares Reserved for Issuance Under our Share-based Compensation Plans
Common Share capital
Number of shares authorised (in shares)					17
Unissued Subordinate Voting Shares Reserved for Issuance Under Employee Share Purchase plan
Common Share capital
Number of shares authorised (in shares)					5

Share capital - Authorized shar

Share capital - Authorized share capital (Details) - shares	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Class B common shares
Common Share capital
Shares issued (in shares)	167,000,000	200,000,000	200,000,000
Class E common shares
Common Share capital
Shares issued (in shares)	107,000,000	67,000,000	66,000,000

Employee future benefits (Detai

Employee future benefits (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CAD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CAD ($)
Defined contribution pension plans
Matching contribution to employees' 5% contribution (in percent)	100%		100%
Defined benefit pension expense	$ 9		$ 9		$ 7
Obligation for defined benefit pension plans	14		9		11
Pension plans
Defined contribution pension plans
Defined benefit pension expense	2		0		1
TELUS Corporation (parent)
Defined contribution pension plans
Defined benefit pension expense		$ 2,000,000		$ 2,000,000		$ 0
TELUS Corporation (parent) | Pension plans
Defined contribution pension plans
Defined benefit pension expense	$ 2		$ 2		$ 1

Related party transactions - Sc

Related party transactions - Schedule of transactions with TELUS Corporation (Details)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CAD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 CAD ($)
Related party transactions
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts receivable	$ 0
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts payable	0
Accounts with TELUS Corporation and subsidiaries, ending balance, accounts payable	0		$ 0
Accounts with TELUS Corporation and subsidiaries, ending balance, accounts receivable	0		0
Due from	62,000,000		81,000,000
Due to	(178,000,000)		(111,000,000)
Defined benefit pension plan, expenses incurred	(9,000,000)		(9,000,000)		$ (7,000,000)
TELUS Corporation (parent)
Related party transactions
Revenues from services provided to	0		0		0
Goods and services purchased from	0		0		0
Gross profit	0		0		0
Receipts from related parties	0		0		0
Payments to related parties	0		1,000,000		20,000,000
Payments (made) collected by related parties on our behalf and other adjustments	(62,000,000)		(50,000,000)		(91,000,000)
Foreign exchange	2,000,000		2,000,000		0
Change in balance	(60,000,000)		(47,000,000)		(71,000,000)
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts receivable					27,000,000
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts payable	91,000,000		44,000,000
Accounts with TELUS Corporation and subsidiaries, ending balance, accounts payable	151,000,000		91,000,000		44,000,000
Due from	20,000,000		8,000,000		0
Due to	(171,000,000)		(99,000,000)		(44,000,000)
Defined benefit pension plan, expenses incurred		$ (2,000,000)		$ (2,000,000)		$ 0
Subsidiaries of TELUS Corporation
Related party transactions
Revenues from services provided to	559,000,000		428,000,000		353,000,000
Goods and services purchased from	(28,000,000)		(33,000,000)		(30,000,000)
Gross profit	531,000,000		395,000,000		323,000,000
Receipts from related parties	(600,000,000)		(417,000,000)		(339,000,000)
Payments to related parties	28,000,000		32,000,000		0
Payments (made) collected by related parties on our behalf and other adjustments	15,000,000		25,000,000		53,000,000
Foreign exchange	0		0		(2,000,000)
Change in balance	(26,000,000)		35,000,000		35,000,000
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts receivable	61,000,000		26,000,000
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts payable					9,000,000
Accounts with TELUS Corporation and subsidiaries, ending balance, accounts receivable	35,000,000		61,000,000		26,000,000
Due from	42,000,000		73,000,000		53,000,000
Due to	(7,000,000)		(12,000,000)		(27,000,000)
Total
Related party transactions
Revenues from services provided to	559,000,000		428,000,000		353,000,000
Goods and services purchased from	(28,000,000)		(33,000,000)		(30,000,000)
Gross profit	531,000,000		395,000,000		323,000,000
Receipts from related parties	(600,000,000)		(417,000,000)		(339,000,000)
Payments to related parties	28,000,000		33,000,000		20,000,000
Payments (made) collected by related parties on our behalf and other adjustments	(47,000,000)		(25,000,000)		(38,000,000)
Foreign exchange	2,000,000		2,000,000		(2,000,000)
Change in balance	(86,000,000)		(12,000,000)		(36,000,000)
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts receivable					18,000,000
Accounts with TELUS Corporation and subsidiaries, beginning balance, accounts payable	30,000,000		18,000,000
Accounts with TELUS Corporation and subsidiaries, ending balance, accounts payable	116,000,000		30,000,000		18,000,000
Due from	62,000,000		81,000,000		53,000,000
Due to	$ (178,000,000)		$ (111,000,000)		$ (71,000,000)

Related party transactions - Ot

Related party transactions - Other transactions with TELUS Corporation (Details) shares in Millions, $ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 03, 2021 shares	Jan. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Related party transactions
Amounts due from affiliates, receivable period				30 days
Term of master service agreement		10 years
Shares issued (in shares) | shares	21
Shares issued				$ 4	$ 3	$ 527
Multiple voting shares
Related party transactions
Share split ratio	4.5			4.5
TELUS Corporation (parent)
Related party transactions
Minimum annual spend amount		$ 200
Portion of consideration paid (received) consisting of cash and cash equivalents			$ 1
Net identifiable assets acquired				$ 2
Increase (decrease) in goodwill			$ 9
TELUS Corporation (parent) | Multiple voting shares
Related party transactions
Shares issued (in shares) | shares	153
Number of shares converted to subordinate voting shares (in shares) | shares	7
Baring Private Equity Asia | Multiple voting shares
Related party transactions
Shares issued (in shares) | shares	82

Related party transactions - Tr

Related party transactions - Transactions with Baring Private Equity Asia (Details) shares in Millions			12 Months Ended
	Dec. 20, 2023 shares	Feb. 03, 2021 shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Related party transactions
Balances due from related party | $			$ 0	$ 0
Balances due to related party | $			$ 0	$ 0
Shares issued (in shares)		21
Multiple voting shares
Related party transactions
Share split ratio		4.5	4.5
Baring Private Equity Asia | Multiple voting shares
Related party transactions
Shares issued (in shares)		82
Common shares converted (in shares)	33
Proportion of voting rights held by non-controlling interests	10.50%
Baring Private Equity Asia | Multiple Voting Shares Issued in Initial Public Offering
Related party transactions
Number of shares converted to subordinate voting shares (in shares)		15
Baring Private Equity Asia | Multiple Voting Shares Issued in Secondary Public Offering
Related party transactions
Number of shares converted to subordinate voting shares (in shares)		14

Related party transactions - _2

Related party transactions - Transactions with key management personnel (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares $ / shares	Dec. 31, 2021 USD ($) shares $ / shares
Related party transactions
Share options granted (in shares) | shares	0	0
Minimum
Related party transactions
Number of months base salary considered for severance payments	12 months
Maximum
Related party transactions
Number of months base salary considered for severance payments	18 months
TELUS Corporation (parent) | Phantom restricted share units
Related party transactions
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares		0	24,757
Grant-date-fair-value of awarded units (in dollars per share) | $ / shares		$ 0	$ 27.58
Senior Leadership Team
Related party transactions
Short-term benefits	$ 5	$ 7	$ 5
Post-employment pension and other benefits	2	1	1
Share-based compensation	$ 11	$ 11	$ 43
Share options granted (in shares) | shares			579,949
Weighted average fair value at measurement date, share options granted			$ 3
Senior Leadership Team | Restricted Stock Units
Related party transactions
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares	458,854	301,190	863,755
Weighted average fair value at measurement date, other equity instruments granted	$ 9	$ 8	$ 22
Senior Leadership Team | Phantom Performance Share Units
Related party transactions
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares	322,984	229,627	192,064
Weighted average fair value at measurement date, other equity instruments granted	$ 7	$ 6	$ 6
Senior Leadership Team | TELUS Corporation (parent) | Telus Phantom Restricted Share
Related party transactions
Number of other equity instruments granted in share-based payment arrangement (in shares) | shares			24,757
Weighted average fair value at measurement date, other equity instruments granted			$ 1

Additional financial informat_3

Additional financial information - Statements of income and other comprehensive income (Details) - Operating revenues benchmark	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Social Media Company
Disclosure of disaggregation of revenue from contracts with customers
Concentration risk percentage	11.20%	15.80%	17.70%
TELUS Corporation
Disclosure of disaggregation of revenue from contracts with customers
Concentration risk percentage	20.60%	17.30%	16.10%
Google
Disclosure of disaggregation of revenue from contracts with customers
Concentration risk percentage	13.10%	11.90%	11%

Additional financial informat_4

Additional financial information - Statements of financial position (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Other long-term assets
Prepaid lease deposits and other	$ 21	$ 20
Other	4	7
Other long-term assets	25	27
Accounts payable and accrued liabilities
Trade accounts payable	37	39
Accrued liabilities	103	110
Payroll and other employee-related liabilities	135	129
Advance billings	4	5
Other	11	6
Total trade and other current payables	$ 290	$ 289

Additional financial informat_5

Additional financial information - Operating activities and investing activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net change in non-cash operating working capital
Accounts receivable	$ 3	$ (26)	$ (124)
Due to and from affiliated companies, net	86	17	36
Prepaid expenses	0	6	(13)
Other long-term assets	2	6	1
Accounts payable and accrued liabilities	(45)	(27)	56
Income and other taxes receivable and payable, net	(2)	(1)	(10)
Other long-term liabilities	(3)	(1)	(15)
Net change in non-cash operating working capital	43	(26)	(69)
Capital asset additions
Property, plant and equipment, excluding right-of-use assets	(79)	(92)	(93)
Intangible assets	(14)	(12)	(8)
Total	(93)	(104)	(101)
Change in associated non-cash investing working capital	4	(1)	2
Cash payments for capital assets and software	(89)	(105)	(99)
Advance billings and customer deposits	0	0	0
Provisions	$ 2	$ 0	$ 0

Additional financial informat_6

Additional financial information - Changes in liabilities arising from financing activities (Details) - Long-term debt - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Changes in liabilities arising from financing activities
Beginning of year	$ 964	$ 1,148	$ 1,766
Issued or received	1,161	411	71
Redemptions, repayments or payments	(613)	(690)	(765)
Foreign exchange movement	9	(7)	(3)
Other	229	102	79
End of year	1,750	964	1,148
Credit facility
Changes in liabilities arising from financing activities
Beginning of year	742	941	1,568
Issued or received	1,161	411	71
Redemptions, repayments or payments	(440)	(610)	(698)
Foreign exchange movement	0	0	0
Other	0	0	0
End of year	1,463	742	941
Debt assumed from acquisitions
Changes in liabilities arising from financing activities
Beginning of year	0
Issued or received	0
Redemptions, repayments or payments	(89)
Foreign exchange movement	0
Other	89
End of year	0	0
Lease liabilities
Changes in liabilities arising from financing activities
Beginning of year	236	215	209
Issued or received	0	0	0
Redemptions, repayments or payments	(84)	(72)	(67)
Foreign exchange movement	9	(7)	(3)
Other	137	100	76
End of year	298	236	215
Deferred debt transaction costs
Changes in liabilities arising from financing activities
Beginning of year	(14)	(8)	(11)
Issued or received	0	0	0
Redemptions, repayments or payments	0	(8)	0
Foreign exchange movement	0	0	0
Other	3	2	3
End of year	$ (11)	$ (14)	$ (8)

Segment information - Geographi

Segment information - Geographical information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Disclosure of geographic information
Number of operating segments | segment	1
Number of reporting segments | segment	1
Revenue from contracts with customers	$ 2,708	$ 2,468	$ 2,194
United States
Disclosure of geographic information
Revenue from contracts with customers	520	401	311
Philippines
Disclosure of geographic information
Revenue from contracts with customers	466	448	344
Canada
Disclosure of geographic information
Revenue from contracts with customers	268	217	188
Net long-lived assets	3,528	2,373
Guatemala
Disclosure of geographic information
Revenue from contracts with customers	261	224	185
Germany
Disclosure of geographic information
Revenue from contracts with customers	221	275	312
El Salvador
Disclosure of geographic information
Revenue from contracts with customers	169	140	121
Spain
Disclosure of geographic information
Revenue from contracts with customers	149	127	130
Bulgaria
Disclosure of geographic information
Revenue from contracts with customers	127	129	124
India
Disclosure of geographic information
Revenue from contracts with customers	120	99	72
Other
Disclosure of geographic information
Revenue from contracts with customers	407	408	$ 407
Outside of Canada
Disclosure of geographic information
Net long-lived assets	$ 499	$ 434

Uncategorized Items - tixt-2023

Label	Element	Value
Common Class C to Common Class E [Member]
Value of Number of Shares Exchanged or Redesignated	tixt_ValueOfNumberOfSharesExchangedOrRedesignated	$ 110,000,000
Common Class C to Common Class E [Member] | Share capital [member]
Value of Number of Shares Exchanged or Redesignated	tixt_ValueOfNumberOfSharesExchangedOrRedesignated	$ 110,000,000
Number of Shares Exchanged or Redesignated	tixt_NumberOfSharesExchangedOrRedesignated	9,000,000
Common Class A to Common Class E [Member]
Value of Number of Shares Exchanged or Redesignated	tixt_ValueOfNumberOfSharesExchangedOrRedesignated	$ (994,000,000)
Common Class A to Common Class E [Member] | Share capital [member]
Value of Number of Shares Exchanged or Redesignated	tixt_ValueOfNumberOfSharesExchangedOrRedesignated	$ (994,000,000)
Number of Shares Exchanged or Redesignated	tixt_NumberOfSharesExchangedOrRedesignated	245,000,000
Multiple Voting Shares to Subordinate Voting Shares [Member]
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	$ (122,000,000)
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	(132,000,000)
Multiple Voting Shares to Subordinate Voting Shares [Member] | Share capital [member]
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	(132,000,000)
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	$ (122,000,000)
Number Of Shares Converted	tixt_NumberOfSharesConverted	33,000,000
Number Of Shares Converted	tixt_NumberOfSharesConverted	36,000,000
Subordinate Voting Shares converted from Multiple Voting Shares [Member]
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	$ 132,000,000
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	122,000,000
Subordinate Voting Shares converted from Multiple Voting Shares [Member] | Share capital [member]
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	132,000,000
Conversion Of Stock, Value of Shares Converted	tixt_ConversionOfStockValueOfSharesConverted	$ 122,000,000
Number Of Shares Converted	tixt_NumberOfSharesConverted	36,000,000
Number Of Shares Converted	tixt_NumberOfSharesConverted	33,000,000
Common Class A to Common Class D [Member]
Value of Number of Shares Exchanged or Redesignated	tixt_ValueOfNumberOfSharesExchangedOrRedesignated	$ 884,000,000
Common Class A to Common Class D [Member] | Share capital [member]
Value of Number of Shares Exchanged or Redesignated	tixt_ValueOfNumberOfSharesExchangedOrRedesignated	$ 884,000,000
Number of Shares Exchanged or Redesignated	tixt_NumberOfSharesExchangedOrRedesignated	236,000,000