Did any of the companies recognize any impairment charges against property, plant and equipment, goodwill or other intangible assets, and if so, how much?

1. Where are the main disclosure requirements for PPE, intangible assets, and inventories found in IFRS and in the Accounting Standards Codification? (Provide detailed references.)
2. For each of the three companies, answer the following questions:
a. According to the footnote in which the company summarizes its significant accounting policies, what method(s) — historical cost, revaluation (fair value) — does each company use for measuring its property, plant and equipment, intangible assets other than goodwill, and goodwill? What inventory valuation method does each company use? Basically, what do the notes say about these assets?
b. In which footnote does each company make its detailed disclosures about goodwill and other intangible assets? For each company, is the footnote number indicated on the face of the balance sheet? How many pages long is the goodwill footnote and basically, what does the note say about this asset?
c. Did any of the companies recognize any impairment charges against property, plant and equipment, goodwill or other intangible assets, and if so, how much? Did the company record any reversals of prior impairment charges, and if so, how much? Basically, what does the note say about impairment.
d. Do any of the companies report a revaluation surplus for any assets, and if so, were there any changes in the revaluation surplus? If so, how much and what does the note basically say about it?