Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2011

Shareholders' Equity (Tables) [Abstract]

Comprehensive Income

	Six Months Ended
	June 30,
	2011		2010
	(In millions)
Net income	$	403	$	488
Other comprehensive income (loss):
Unrealized gain on marketable securities		5		2
Translation adjustments		20		(3	)
Total comprehensive income	$	428	$	487