Comprehensive Income

6 Months Ended

Jun. 30, 2011

Comprehensive Income [Abstract]

Comprehensive Income

(8)           Comprehensive Income

The following table summarizes the components of total comprehensive income (net of tax):

	Three Months Ended June 30,				Six Months Ended June 30,
	2010		2011		2010		2011
	(in millions)
Net income	$	33	$	47	$	139	$	180
Other comprehensive income:
Adjustment to postretirement plans (net of tax of $-0-, $-0-, $-0- and $-0-)		—		—		—		—
Other comprehensive income		—		—		—		—
Comprehensive income	$	33	$	47	$	139	$	180

The following table summarizes the components of accumulated other comprehensive loss:

	December 31, 2010			June 30, 2011
	(in millions)
Adjustment to postretirement plans	$	(5	)	$	(5	)
Total accumulated other comprehensive loss	$	(5	)	$	(5	)