Employee Benefits (Tables)

3 Months Ended

Mar. 31, 2012

Pension

Employee Benefits

Schedule of components of net periodic benefit cost

	Pension Plans
	Three Months Ended March 31,
	2012			2011
	(Dollars in millions)
Service cost	$	22			8
Interest cost		156			59
Expected return on plan assets		(212	)		(73	)
Recognition of prior service cost		1			1
Recognition of actuarial loss		8			4
Net periodic pension benefit	$	(25	)		(1	)

Other Post-Retirement Benefits

Employee Benefits

Schedule of components of net periodic benefit cost

	Post-Retirement Plans
	Three Months Ended March 31,
	2012			2011
	(Dollars in millions)
Service cost	$	6			3
Interest cost		43			8
Expected return on plan assets		(11	)		(1	)
Recognition of prior service cost		—			(1	)
Net periodic post-retirement expense	$	38			9