Item 2. Properties.

Our corporate co-headquarters are located in Pittsburgh, Pennsylvania and Chicago, Illinois. Our co-headquarters are leased and house our executive offices, certain U.S. business units, and our administrative, finance, and human resource functions. We maintain additional owned and leased offices throughout the regions in which we operate.

We manufacture our products in our network of manufacturing and processing facilities located throughout the world. As of December 31, 2016, we operated 87 manufacturing and processing facilities. We own 83 and lease four of these facilities. Our manufacturing and processing facilities count by segment as of December 31, 2016 was:

We maintain all of our manufacturing and processing facilities in good condition and believe they are suitable and are adequate for our present needs. We also enter into co-manufacturing arrangements with third parties if we determine it is advantageous to outsource the production of any of our products.

In the fourth quarter of 2016, we reorganized our segment structure to move our Russia business from the Rest of World segment to the Europe segment. We have reflected this change in the table above. See Note 18, Segment Reporting, to the consolidated financial statements for additional information.

Several of our current manufacturing and processing facilities are scheduled to be closed within the next year. See Note 3, Integration and Restructuring Expenses, to the consolidated financial statements for additional information.