Pension Costs (Tables)

6 Months Ended

Jun. 30, 2011

Pension Costs Table [Abstract]

Schedule of Net Periodic Benefit Costs

A summary of the components of net periodic benefit costs for the three and six months endedJune 30,2011 and 2010 is as follows (in millions):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2011		2010		2011		2010
Service cost	$	34	$	27	$	66	$	58
Interest cost		29		24		57		50
Expected return on plan assets		(37)		(31)		(74)		(63)
Amounts amortized		7		6		13		14
Net periodic benefit costs	$	33	$	26	$	62	$	59