capital program and cash that may be generated from asset dispositions. Based on its high-quality debt ratings, the company believes that it has substantial borrowing capacity to meet unanticipated cash requirements. During extended periods of low prices for crude oil and natural gas and narrow margins for refined products and commodity chemicals, the company can also modify capital spending plans to provide flexibility to continue paying the common stock dividend and also remain committed to retaining the company’s high-quality debt ratings.

Committed Credit Facilities Information related to committed credit facilities is included in Note 19 to the Consolidated Financial Statements, Short-Term Debt, on page FS-48.

Common Stock Repurchase Program In July 2010, the Board of Directors approved an ongoing share repurchase program with no set term or monetary limits. The company did not acquire any shares under the program in 2015. From the inception of the program through 2014, the company had purchased 180.9 million shares for $20.0 billion.

Capital and Exploratory Expenditures

Capital and exploratory expenditures by business segment for 2015, 2014 and 2013 are as follows:

Total expenditures for 2015 were $34.0 billion, including $3.4 billion for the company’s share of equity-affiliate expenditures, which did not require cash outlays by the company. In 2014 and 2013, expenditures were $40.3 billion and $41.9 billion, respectively, including the company’s share of affiliates’ expenditures of $3.5 billion and $2.7 billion, respectively.

Of the $34.0 billion of expenditures in 2015, 92 percent, or $31.1 billion, was related to upstream activities. Approximately 92 percent and 90 percent was expended for upstream operations in 2014 and 2013, respectively. International upstream accounted for 76 percent of the worldwide upstream investment in 2015, 76 percent in 2014 and 78 percent in 2013.

The company estimates that 2016 capital and exploratory expenditures will be $26.6 billion, including $4.5 billion of spending by affiliates. This planned reduction, compared to 2015 expenditures, is in response to current crude oil market conditions. Approximately 90 percent of the total, or $24.0 billion, is budgeted for exploration and production activities. Approximately $9 billion of planned upstream capital spending is for existing base producing assets, which include shale and tight resource investments. Approximately $11 billion is related to major capital projects currently underway, and approximately $3 billion relates to projects yet to be sanctioned. Global exploration funding accounts for approximately $1 billion. The company will continue to monitor crude oil market conditions, and will further restrict capital outlays should current oil price conditions persist.

Worldwide downstream spending in 2016 is estimated at $2.2 billion, with $1.6 billion for projects in the United States.

Investments in technology companies and other corporate businesses in 2016 are budgeted at $0.4 billion.

Noncontrolling Interests The company had noncontrolling interests of $1.2 billion at both December 31, 2015, and December 31, 2014. Distributions to