Debt (Tables)

12 Months Ended

Dec. 31, 2012

Carrying Value of Long-Term Debt Outstanding

The carrying value of long-term debt outstanding was as follows at December 31, 2012 and 2011:

	2012		2011
	(in millions)
Long-term debt:
Senior notes:
$500 million, 6.45% due June 1, 2016	$	523	$	530
$500 million, 7.20% due June 15, 2018		506		507
$300 million, 6.30% due August 1, 2018		317		319
$600 million, 3.15% due December 1, 2022		598		0
$250 million, 8.15% due June 15, 2038		267		267
$400 million, 4.625% due December 1, 2042		400		0
Total senior notes		2,611		1,623
Other long-term borrowings		0		36
Total long-term debt	$	2,611	$	1,659