What accounts for the high GDP of the United States? Wikipedia defines GDP as:


  Measure of the market value of all final goods and services produced in a period (quarterly or yearly) of time.


So, I take it that the total value of all goods (and services, whatever "Services" means) manufactured within the country per year is the country's GDP. This YouTube video does a nice job of explaining it too:

What is Gross Domestic Product (GDP)?

The United States GDP, also from Wikipedia, is around $19 trillion! 

According to the definition, US should manufacture USD 19 trillion worth of goods (finished products) and services within the US, but again, according to this Wikipedia article, US manufacturing industry outputs only about $2.2 trillion worth of goods. 

So, what accounts for the remaining $17 trillion? Is it the "Services"? If so, what are these services and how are they measured?
Looking at gross output (which includes using the outputs of other industries) and value-added (largely wages and profits) by industry you get numbers like this for 2017 in USD trillion.  

Adding up the value-added gives total GDP, and you can see that there is a lot more to the economy than manufacturing

                                                         Gross output  Value-added
Agriculture, forestry, fishing, and hunting                       0.4  0.2
Mining                                                            0.5  0.3
Utilities                                                         0.4  0.3
Construction                                                      1.5  0.8
Manufacturing                                                     6.0  2.2
Wholesale trade                                                   1.7  1.2
Retail trade                                                      1.8  1.1
Transportation and warehousing                                    1.1  0.6
Information                                                       1.7  0.9
Finance, insurance, real estate, rental, and leasing              6.2  4.1  
Professional and business services                                3.8  2.4
Educational services, health care, and social assistance          2.8  1.6 
Arts, entertainment, recreation, accommodation, and food services 1.4  0.8
Other services, except government                                 0.7  0.4
Government                                                        3.7  2.5

Total                                                            33.7 19.4