Revenue

12 Months Ended

Dec. 31, 2021

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 table presents our earned revenue disaggregation by industry vertical for the following periods:

Years Ended December 31 (millions)	2021		2020		2019
Tech and Games	$	999	$	617	$	321
Communications and Media	537		481		390
eCommerce and FinTech	259		171		108
Travel and Hospitality	62		54		40
Healthcare	47		36		43
Other	290		223		118
	$	2,194	$	1,582	$	1,020

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 centers. The following table presents our earned revenue disaggregated by geographic region, based on location of our delivery center or where service was provided, for the following periods:

Years Ended December 31 (millions)	2021		2020		2019
Europe	$	921	$	636	$	221
North America	502		346		261
Asia-Pacific	455		337		329
Central America	316		263		209
	$	2,194	$	1,582	$	1,020