Available-For-Sale Securities (Tables)

6 Months Ended

Jun. 30, 2012

Investments, Debt and Equity Securities [Abstract]

Schedule of available-for-sale securities

	June 30, 2012							December 31, 2011
(Millions of dollars)	Cost Basis		Unrealized Pretax Net Gains (Losses)			Fair Value		Cost Basis		Unrealized Pretax Net Gains (Losses)			Fair Value
Government debt
U.S. treasury bonds	$	10	$	—		$	10	$	10	$	—		$	10
Other U.S. and non-U.S. government bonds	121		2			123		90		2			92
Corporate bonds
Corporate bonds	588		35			623		542		30			572
Asset-backed securities	96		(1		)	95		112		(1		)	111
Mortgage-backed debt securities
U.S. governmental agency	266		12			278		297		13			310
Residential	29		(3		)	26		33		(3		)	30
Commercial	131		6			137		142		3			145
Equity securities
Large capitalization value	139		29			168		127		21			148
Smaller company growth	22		11			33		22		7			29
Total	$	1,402	$	91		$	1,493	$	1,375	$	72		$	1,447

Investments in an unrealized loss position that are not other-than-temporarily impaired:

Investments in an unrealized loss position that are not other-than-temporarily impaired:
	June 30, 2012
	Less than 12 months1				12 months or more1				Total
(Millions of dollars)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Corporate bonds
Asset-backed securities	$	3	$	—	$	19	$	4	$	22	$	4
Mortgage-backed debt securities
Residential	2		—		15		3		17		3
Commercial	2		—		8		1		10		1
Equity securities
Large capitalization value	28		3		14		2		42		5
Total	$	35	$	3	$	56	$	10	$	91	$	13

	December 31, 2011
	Less than 12 months1				12 months or more1				Total
(Millions of dollars)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Corporate bonds
Corporate bonds	$	54	$	1	$	1	$	—	$	55	$	1
Asset-backed securities	1		—		20		5		21		5
Mortgage-backed debt securities
U.S. governmental agency	51		1		—		—		51		1
Residential	3		—		18		3		21		3
Commercial	15		—		8		1		23		1
Equity securities
Large capitalization value	36		5		6		1		42		6
Smaller company growth	4		1		—		—		4		1
Total	$	164	$	8	$	53	$	10	$	217	$	18

¹  Indicates length of time that individual securities have been in a continuous unrealized loss position.

Fair value of the available-for-sale debt securities, by contractual maturity

(Millions of dollars)	Cost Basis		Fair Value
Due in one year or less	$	125	$	127
Due after one year through five years	496		510
Due after five years through ten years	149		171
Due after ten years	45		43
U.S. agency mortgage-backed securities	266		278
Residential mortgage-backed securities	29		26
Commercial mortgage-backed securities	131		137
Total debt securities – available-for-sale	$	1,241	$	1,292

Schedule of proceeds and gross gain and losses from the sale of available-for-sale securities

Sales of Securities
	Three Months Ended June 30,				Six Months Ended June 30,
(Millions of dollars)	2012		2011		2012		2011
Proceeds from the sale of available-for-sale securities	$	65	$	56	$	177	$	122
Gross gains from the sale of available-for-sale securities	$	1	$	1	$	3	$	2
Gross losses from the sale of available-for-sale securities	$	—	$	—	$	—	$	1