Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Benefit Plans

Summary of the Components of Net Periodic Benefit Cost Recognized for Pension Plans

	Pension Plans
	Qualified						Nonqualified
	Three Months Ended June 30,						Three Months Ended June 30,
	2011			2010			2011		2010
	(Dollars in millions)
Service cost	$	27		$	20		$	1	$	1
Interest cost		23			21			3		2
Estimated return on plan assets		(49	)		(45	)		—		—
Amortization and other		6			6			1		—
Net periodic benefit cost	$	7		$	2		$	5	$	3

	Pension Plans
	Qualified						Nonqualified
	Six Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011		2010
	(Dollars in millions)
Service cost	$	53		$	40		$	3	$	2
Interest cost		46			42			5		4
Estimated return on plan assets		(98	)		(89	)		—		—
Amortization and other		13			11			2		1
Net periodic benefit cost	$	14		$	4		$	10	$	7