Sewickley Company Use the Liabilities Section of Sewickley Company's Balance

Sewickley Company Use the liabilities section of Sewickley Company's balance sheet to answer the questions that follow.
Sewickley Company
Consolidated Balance Sheets
(in millions)

$\begin{array}{l}&\text { December } 31,\\&2017&2016\\\text { Current liabilities }\\\text { Short-term borrowings } & \$ 354 & \$ 202 \\\text { Accounts payable and other current liabilities } & 4,461 & 4,529 \\\text { Income taxes payable } & 183 & 64 \\\text { Total current liabilities } & \$ 4,998 & \$ 4,795\\\\\text { Long-term debt } & \$ 2,651 & \$ 3,009 \\\text { Other long-term liabilities } & 3,876 & 3,960 \\\text { Deferred income taxes (assume all are long-term) } & 1,496 & 1,367\\\end{array}$ ​
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-Review the consolidated balance sheets of Sewickley Company.
Required:
(1) What are the total long-term liabilities for the two years presented?
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(2) What is the percent increase/decrease of long-term liabilities from 2016 to 2017? Which liability appears to have caused the greatest change?