2012 ANNUAL REPORT 65 Notes to Consolidated Financial Statements Asset Retirement Obligations. We record the fair value of legal obligations associated with the retirement of tangible long- lived assets in the period in which it is determined to exist, if a rea- sonable estimate of fair value can be made. Upon initial recognition of a liability, we capitalize the cost of the asset retirement obligation by increasing the carrying amount of the related long-lived asset. Over time, the liability is increased for changes in its present value and the capitalized cost is depreciated over the useful life of the related asset. We have determined that conditional legal obligations exist for certain of our worldwide owned and leased facilities related primarily to building materials. As of December 31, 2012 and 2011, the outstanding liability for asset retirement obligations was $174 million and $164 million, respectively. Pension and Postretirement Obligations. Guidance under the FASB ASC Topic Compensation—Retirement Benefits requires balance sheet recognition of the overfunded or under- funded status of pension and postretirement benefit plans. Under this guidance, actuarial gains and losses, prior service costs or credits, and any remaining transition assets or obligations that have not been recognized under previous accounting standards must be recognized in other comprehensive income, net of tax effects, until they are amortized as a component of net periodic benefit cost. Business Acquisitions and Dispositions. Our investments in businesses in 2012, 2011 and 2010 totaled $18.6 billion (including debt assumed of $2.6 billion), $372 million (including debt assumed of $15 million) and $2.8 billion (including debt assumed of $39 million), respectively. To finance the cash consideration for the Goodrich acquis- ition and pay related fees, expenses and other amounts due and payable, we utilized the previously disclosed net proceeds of approximately $9.6 billion from the $9.8 billion of long-term notes issued on June 1, 2012, the net proceeds of approximately $1.1 billion from the equity units issued on June 18, 2012, $3.2 billion from the issuance of commercial paper during July 2012, and $2.0 billion of proceeds borrowed under our April 24, 2012 term loan credit agreement. For the remainder of the cash consideration, we utilized approximately $0.5 billion of cash and cash equivalents generated from operating activities. On July 26, 2012, we completed the acquisition of Good- rich, a global supplier of systems and services to the aerospace and defense industry with 2011 sales of $8.1 billion. Goodrich products include aircraft nacelles and interior, actuation, landing and electronic systems. Under the terms of the agreement, Good- rich shareholders received $127.50 in cash for each share of Good- rich common stock they owned on July 26, 2012. This equated to a total enterprise value of $18.3 billion, including $1.9 billion in net debt assumed. The acquired Goodrich businesses were combined with the legacy Hamilton Sundstrand businesses to form the new UTC Aerospace Systems segment. The Goodrich acquisition and the formation of UTC Aerospace Systems provide increased scale, financial strength and complementary product offerings, allowing us to significantly strengthen our position in the aerospace and defense industry, create aftermarket efficiencies for our customers, accelerate our ability to drive innovation within the aerospace industry, and enhance our ability to support our customers with more integrated systems. This acquisition, coupled with our acquis- ition of an additional interest in IAE, as discussed below, further advances UTC’s strategy of focusing on our core businesses. NOTE 2: BUSINESS ACQUISITIONS, DISPOSITIONS, GOODWILL AND INTANGIBLE ASSETS