SEGMENT FINANCIAL DATA Our operations for the periods presented herein are classified into two principal segments. The segments are generally determined based on the management structure of the businesses and the grouping of similar operating companies, where each management organization has general operating autonomy over diversified products and services. Pratt &amp; Whitney products include commercial, military, business jet and general aviation aircraft engines, parts and services sold to a diversified customer base, including international and domestic commercial airlines and aircraft leasing companies, aircraft manufacturers, and U.S. and foreign governments. Pratt &amp; Whitney also provides product support and a full range of overhaul, repair and fleet management services. Collins Aerospace Systems provides technologically advanced aerospace products and aftermarket service solutions for aircraft manufacturers, airlines, regional, business and general aviation markets, military and space operations. Products include electric power generation, power management and distribution systems, air data and aircraft sensing systems, engine control systems, intelligence, surveillance and reconnaissance systems, engine components, environmental control systems, fire and ice detection and protection systems, propeller systems, engine nacelle systems, including thrust reversers and mounting pylons, interior and exterior aircraft lighting, aircraft seating and cargo systems, actuation systems, landing systems, including landing gear, wheels and brakes, and space products and subsystems, integrated avionics systems, precision targeting, electronic warfare and range and training systems, flight controls, communications systems, navigation systems, oxygen systems, simulation and training systems, food and beverage preparation, storage and galley systems, lavatory and wastewater management systems. Aftermarket services include spare parts, overhaul and repair, engineering and technical support, training and fleet management solutions, and information management services. We have reported our financial and operational results for the periods presented herein under the two principal segments noted above, consistent with how we have reviewed our business operations for decision-making purposes, resource allocation and performance assessment during 2019. Segment Information. Total sales by segment include intersegment sales, which are generally made at prices approximating those that the selling entity is able to obtain on external sales. Segment information for the years ended December 31 is as follows: Net Sales Operating Profits (dollars in millions) 2019 2018 2017 2019 2018 2017 Pratt &amp; Whitney 20,892 19,397 16,160 1,668 1,269 1,300 Collins Aerospace Systems 26,028 16,634 14,691 4,100 2,303 2,191 Total segment 46,920 36,031 30,851 5,768 3,572 3,491 Eliminations and other (1,571) (1,330) (1,138) (339) (220) (63) General corporate expenses    (515) (475) (439) Consolidated $ 45,349 $ 34,701 $ 29,713 $ 4,914 $ 2,877 $ 2,989 Total Assets Capital Expenditures Depreciation &amp; Amortization (dollars in millions) 2019 2018 2017 2019 2018 2017 2019 2018 2017 Pratt &amp; Whitney 31,271 29,341 26,768 822 866 923 980 852 672 Collins Aerospace Systems 74,049 73,115 34,567 959 515 527 1,749 883 823 Total segment 105,320 102,456 61,335 1,781 1,381 1,450 2,729 1,735 1,495 Eliminations and other 2,472 1,015 4,659 87 86 106 (21) 161 85 Assets related to discontinued operations $ 31,823 $ 30,740 $ 30,926 Consolidated $ 139,615 $ 134,211 $ 96,920 $ 1,868 $ 1,467 $ 1,556 $ 2,708 $ 1,896 $ 1,580 Geographic External Sales and Operating Profit. Geographic external sales and operating profits are attributed to the geographic regions based on their location of origin. U.S. external sales include export sales to commercial customers outside the U.S. and sales to the U.S. Government, commercial and affiliated customers, which are known to be for resale to customers outside the U.S. Long-lived assets are net fixed assets attributed to the specific geographic regions. External Net Sales Operating Profits Long-Lived Assets (dollars in millions) 2019 2018 2017 2019 2018 2017 2019 2018 2017 United States Operations $ 35,125 $ 26,646 $ 21,975 $ 3,287 $ 1,790 $ 1,603 $ 6,507 $ 6,165 $ 4,424 International Operations Europe 4,419 3,092 2,747 1,480 1,027 826 1,268 1,272 1,147 Asia Pacific 1,989 1,645 1,779 444 365 351 917 905 685 Other 5,387 4,648 4,350 557 390 711 1,089 1,064 1,082 Eliminations and other (1,571) (1,330) (1,138) (854) (695) (502) 541 500 469 Consolidated $ 45,349 $ 34,701 $ 29,713 $ 4,914 $ 2,877 $ 2,989 $ 10,322 $ 9,906 $ 7,807 Sales from U.S. operations include export sales as follows: (dollars in millions) 2019 2018 2017 Europe $ 7,078 $ 6,217 $ 5,197 Asia Pacific 6,411 5,355 3,526 Other 3,295 1,966 1,675 Total $ 16,784 $ 13,538 $ 10,398 Sales by primary geographical market for the year ended December 31, 2019 is as follows: (dollars in millions) Pratt &amp; Whitney Collins Aerospace Systems Total Primary Geographical Markets United States $ 16,148 $ 18,977 $ 35,125 Europe 498 3,921 4,419 Asia Pacific 1,164 825 1,989 Other* 3,082 2,305 5,387 Total segment $ 20,892 $ 26,028 $ 46,920 Eliminations and other (1,571) Consolidated $ 45,349 Sales by primary geographical market for the year ended December 31, 2018 is as follows: (dollars in millions) Pratt &amp; Whitney Collins Aerospace Systems Total Primary Geographical Markets United States $ 14,852 $ 11,794 $ 26,646 Europe 594 2,498 3,092 Asia Pacific 1,277 368 1,645 Other (1) 2,674 1,974 4,648 Total segment $ 19,397 $ 16,634 $ 36,031 Eliminations and other (1,330) Consolidated $ 34,701 (1) Other includes sales to other regions as well as intersegment sales. Segment sales disaggregated by product type and product versus service for the year ended December 31, 2019 are as follows: (dollars in millions) Pratt &amp; Whitney Collins Aerospace Systems Total Product Type Commercial and industrial, non aerospace $ 102 $ 51 $ 153 Commercial aerospace 14,516 19,005 33,521 Military aerospace 6,274 6,972 13,246 Total segment $ 20,892 $ 26,028 $ 46,920 Eliminations and other (1,571) Consolidated $ 45,349 Sales Type Product $ 12,977 $ 21,440 $ 34,417 Service 7,915 4,588 12,503 Total segment $ 20,892 $ 26,028 $ 46,920 Eliminations and other (1,571) Consolidated $ 45,349 Segment sales disaggregated by product type and product versus service for the year ended December 31, 2018 are as follows: (dollars in millions) Pratt &amp; Whitney Collins Aerospace Systems Total Product Type Commercial and industrial, non aerospace $ 55 $ 60 $ 115 Commercial aerospace 14,027 12,564 26,591 Military aerospace 5,315 4,010 9,325 Total segment $ 19,397 $ 16,634 $ 36,031 Eliminations and other (1,330) Consolidated $ 34,701 Sales Type Product $ 11,410 $ 13,915 $ 25,325 Service 7,987 2,719 10,706 Total segment $ 19,397 $ 16,634 $ 36,031 Eliminations and other (1,330) Consolidated $ 34,701 Major Customers. Net Sales include sales under prime contracts and subcontracts to the U.S. Government as follows: (dollars in millions) 2019 2018 2017 Pratt &amp; Whitney $ 5,614 $ 4,489 $ 3,347 Collins Aerospace Systems 4,802 2,779 2,299 Other 12 10 12 Total $ 10,428 $ 7,278 $ 5,658 Sales to Airbus prior to discounts and incentives were approximately $9,879 million, $10,025 million and $8,908 million for the years ended December 31, 2019, 2018 and 2017, respectively.