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Cash Flow Information (Policies)	3 Months Ended
Cash Flow Information (Policies)	Mar. 31, 2015
Supplemental Cash Flow Information [Abstract]
Cash and Cash Equivalents	We consider all highly liquid investments with a maturity of three months or less as of the date of purchase to be cash equivalents unless the investments are legally or contractually restricted for more than three months.

Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.

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