For the years ended December 31, 2022 and 2021, three clients each accounted for more than 10% of our revenues, and for the year ended December 31, 2020, two clients each accounted for more than 10% of our revenues. TELUS Corporation, our controlling shareholder and largest client for the year ended December 31, 2022, accounted for approximately 17.3%, 16.1% and 19.6% of our revenue for the years ended December 31, 2022, 2021 and 2020, respectively. Our second largest client for the year ended December 31, 2022, a leading social media company, accounted for 15.0%, 17.7% and 15.6% of our revenue for the years ended December 31, 2022, 2021 and 2020, respectively. Our third largest client, Google, accounted for approximately 11.9%, 11.0% and 7.5% of our revenue for the years ended December 31, 2022, 2021 and 2020, respectively.


As at December 31 (millions)	Note	2022		2021







Other long-term assets
Prepaid lease deposits and other		$	20	$	26
Other		7		7
		$	27	$	33
Accounts payable and accrued liabilities
Trade accounts payable		$	39	$	79
Accrued liabilities		111		75
Payroll and other employee-related liabilities		129		144
Share-based compensation liability		1		22
Other		10		16
		$	290	$	336


Years Ended December 31 (millions)	2022		2021		2020
Net change in non-cash operating working capital
Accounts receivable	$	(26)	$	(124)	$	(30)
Due to and from affiliated companies, net	17		36		(13)
Prepaid expenses	6		(13)		8
Other long-term assets	6		1		(4)
Accounts payable and accrued liabilities	(27)		56		42
Income and other taxes receivable and payable, net	(1)		(10)		(7)


Other long-term liabilities	(1)		(15)		5
	$	(26)	$	(69)	$	1
Cash payments for capital assets
Capital asset additions
Capital expenditures
Property, plant and equipment, excluding right-of-use assets	$	(92)	$	(93)	$	(63)
Intangible assets	(12)		(8)		(11)
	(104)		(101)		(74)
Change in associated non-cash investing working capital	(1)		2		14
	$	(105)	$	(99)	$	(60)

(d) Changes in liabilities arising from financing activities


			Statements of cash flows				Non-cash changes
Year Ended December 31, 2022 (millions)	Beginning of year		Issued or received		Redemptions, repayments or payments		Foreign exchange movement		Other		End of year
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 of year		Issued or received		Redemptions, repayments or payments		Foreign exchange movement		Other		End of year
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


			Statements of cash flows				Non-cash changes
Year Ended December 31, 2020 (millions)	Beginning of year		Issued or received		Redemptions, repayments or payments		Foreign exchange movement		Other		End of year
Long-term debt
Credit facility	$	336	$	1,854	$	(622)	$	—	$	—	$	1,568
Other	—		—		(138)		—		138		—
Lease liabilities	189		—		(59)		12		67		209
Deferred debt transaction costs	(4)		—		—		—		(7)		(11)
	$	521	$	1,854	$	(819)	$	12	$	198	$	1,766