Segmented information	12 Months Ended
Segmented information	Dec. 31, 2023
Segmented information [Abstract]
Segmented information	29. Segmented information Cameco has three reportable segments: uranium, fuel services and Westinghouse. Cameco's reportable segments are strategic business units with different products, processes and marketing strategies. The uranium segment involves the exploration for, mining, milling, purchase and sale of uranium concentrate. The fuel services segment involves the refining, conversion and fabrication of uranium concentrate and the purchase and sale of conversion services. The Westinghouse segment reflects our earnings from this equity-accounted investment (see note 12). Westinghouse is a nuclear reactor technology original equipment manufacturer and a global provider of products and services to commercial utilities and government agencies. It provides outage and maintenance services, engineering support, instrumentation and controls equipment, plant modification, and components and parts to nuclear reactors. Cost of sales in the uranium segment includes care and maintenance costs for our operations that have had production suspensions as well as operational readiness costs for our operations that have resumed operations. Operational readiness costs include costs to complete critical projects, perform maintenance readiness checks, and recruit and train sufficient mine and mill personnel before beginning operations. Cameco expensed $ 50,615,000 of care and maintenance costs during the year (2022 - $ 218,439,000 of care and maintenance and operational readiness costs). Accounting policies used in each segment are consistent with the policies outlined in the summary of material accounting policies. A. Business segments - 2023 For the year ended December 31, 2023 Uranium Fuel services (i) WEC (i) Adjustments Other Total Revenue $ 2,152,242 $ 425,557 $ 521,074 $ (521,074) $ 9,959 $ 2,587,758 Expenses Cost of products and services sold 1,532,316 266,062 200,285 (200,285) 7,390 1,805,768 Depreciation and amortization 175,457 35,426 60,766 (60,766) 9,441 220,324 Cost of sales 1,707,773 301,488 261,051 (261,051) 16,831 2,026,092 Gross profit (loss) 444,469 124,069 260,023 (260,023) (6,872) 561,666 Administration - - 244,400 (244,400) 245,539 245,539 Exploration 17,551 - - - - 17,551 Research and development - - - - 21,036 21,036 Other operating income (1,875) (5,634) - - - (7,509) Loss on disposal of assets 1,825 363 - - - 2,188 Finance costs - - 26,274 (26,274) 115,869 115,869 Loss (gain) on derivatives - - 2,838 (2,838) (37,791) (37,791) Finance income - - (1,885) 1,885 (111,670) (111,670) Share of earnings from equity-accounted investees (178,848) - - 24,386 - (154,462) Other expense (income) (545) - 19,424 (19,424) (15,693) (16,238) Earnings (loss) before income taxes 606,361 129,340 (31,028) 6,642 (224,162) 487,153 Income tax expense 126,337 Net earnings 360,816 Capital expenditures for the year $ 105,384 $ 42,546 $ 42,405 $ (42,405) $ 5,701 $ 153,631 (i) Consistent with the presentation of financial information for internal management purposes, Cameco’s share of Westinghouse’s financial results have been presented as a separate segment. In accordance with IFRS, this investment is accounted for by the equity method of accounting in these consolidated financial statements and the associated revenues and expenses are eliminated in the “Adjustments” column. For the year ended December 31, 2022 Uranium Fuel services Other Total Revenue $ 1,480,146 $ 365,063 $ 22,794 $ 1,868,003 Expenses Cost of products and services sold 1,223,558 215,660 18,118 1,457,336 Depreciation and amortization 135,800 32,618 8,958 177,376 Cost of sales 1,359,358 248,278 27,076 1,634,712 Gross profit (loss) 120,788 116,785 (4,282) 233,291 Administration - - 172,029 172,029 Exploration 10,578 - - 10,578 Research and development - - 12,175 12,175 Other operating expense (income) 25,845 (2,901) - 22,944 (Gain) loss on disposal of assets 726 (212) - 514 Finance costs - - 85,728 85,728 Loss on derivatives - - 72,949 72,949 Finance income - - (37,499) (37,499) Share of earnings from equity-accounted investee (93,988) - - (93,988) Other income (22,802) - (74,132) (96,934) Earnings (loss) before income taxes 200,429 119,898 (235,532) 84,795 Income tax recovery (4,469) Net earnings 89,264 Capital expenditures for the year $ 101,547 $ 39,736 $ 2,198 $ 143,481 B. Geographic segments Revenue is attributed to the geographic location based on the location of the entity providing the services. The Company’s revenue from external customers is as follows: 2023 2022 Canada $ 1,877,742 $ 994,534 United States 710,016 873,469 $ 2,587,758 $ 1,868,003 The Company’s non-current assets, excluding deferred tax assets and financial instruments, by geographic location are as follows: 2023 2022 Canada $ 2,947,395 $ 3,042,533 Australia 389,152 397,678 United States 75,769 80,352 Kazakhstan 28 38 Germany 5 6 $ 3,412,349 $ 3,520,607 C. Major customers Cameco relies on a small number of customers to purchase a significant portion of its uranium concentrates and uranium conversion services. During 2023, revenues from one customer of Cameco’s uranium and fuel services segments represented approximately $ 254,786,000 (2022 - $ 227,846,000 ), approximately 10 % (2022 - 12 %) of Cameco’s total revenues from these segments. As customers are relatively few in number, accounts receivable from any individual customer may periodically exceed 10% of accounts receivable depending on delivery schedule.