Financial Instruments

The estimated fair value of the Company’s significant financial instruments is provided below. Certain estimates and judgments were required to develop the fair value amounts. The fair value amounts shown below are not necessarily indicative of the amounts that the Company would realize upon disposition, nor do they indicate the Company’s intent or need to dispose of the financial instrument.



	December 31, 2011				December 31, 2010
(In millions of dollars)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cash and cash equivalents	$	2,113	$	2,113	$	1,894	$	1,894
Long-term investments	$	58	$	58	$	68	$	64
Short-term debt	$	260	$	261	$	8	$	8
Long-term debt	$	2,668	$	2,958	$	3,026	$	3,234

Cash and Cash Equivalents: The estimated fair value of the Company’s cash and cash equivalents approximates their carrying value.

Long-term Investments: Long-term investments include certain investments carried at cost and unrealized gains related to available-for-sale investments held in a fiduciary capacity as discussed below.

The Company has long-term investments of $37 million and $39 million at December 31, 2011 and December 31, 2010, carried on the cost basis for which there are no readily available market prices. These investments are included in other assets in the consolidated balance sheets. The Company monitors these investments for impairment and makes appropriate reductions in carrying values when necessary.

A portion of the Company’s fiduciary funds described in Note 3 are invested in high quality debt securities and are classified as available-for-sale. Gross unrealized gains (pre-tax) on these securities that are included in other assets and accumulated other comprehensive income in the consolidated balance sheets were $1 million and $7 million at December 31, 2011 and 2010, respectively. In the twelve months ended December 31, 2011, 2010 and 2009, the Company recorded gross unrealized losses (pre-tax) of $6 million, $10 million, and $7 million respectively, related to these investments. These amounts have been excluded from earnings and reported, net of deferred income taxes, in accumulated other comprehensive income (loss), which is a component of equity.

Short-term and Long-term Debt: The fair value of the Company’s short-term debt, which consists primarily of term debt maturing within the next year, approximates its carrying value. The estimated fair value of a primary portion of the Company’s long-term debt is based on discounted future cash flows using current interest rates available for debt with similar terms and remaining maturities. The fair value of long term debt includes the fair value of the interest rate swap derivative on the first $250 million of Senior Notes maturing in 2014 (discussed above).