Customer Concentration (Tables)

12 Months Ended

Dec. 31, 2023

Schedule of Revenue and Accounts Receivable by Major Customers

The concentration of our customer credit risk in excess of 10% of total revenues and/or trade and other receivables, net of current expected credit losses and contract assets, net of current expected credit losses was as follows:


		Percentage of Total Revenues from External Customers			Percentage of Trade and Other Receivables, Net and Contract Assets, Net from External Customers
	Year Ended December 31,			December 31,

		2023	2022	2021	2023	2022
Customer A		23%	22%	24%	22%	27%
Customer B		16%	15%	17%	16%	*
Customer C		16%	15%	17%	12%	18%
Customer D		15%	15%	16%	15%	18%
Customer E		11%	10%	11%	12%	*
Customer F		*	*	*	—%	13%

* Less than 10%

Schedule of Revenue from External Customers by Country

The following table shows revenues from external customers attributable to the country in which the revenues were derived (in millions). We attribute revenues from external customers to the country in which the party to the applicable agreement has its principal place of business. Substantially all of our long-lived assets are located in the United States.


	Revenues from External Customers
	Year Ended December 31,
	2023		2022		2021
United States	$	2,601	$	5,278	$	2,872
South Korea	1,169		1,932		1,336
India	1,119		1,951		1,342
Ireland	1,058		1,858		1,237
United Kingdom	717		1,026		966
Switzerland	245		593		208
Other countries	280		—		—
Total	$	7,189	$	12,638	$	7,961