Employee Pension and Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2012

Employee Pension and Other Postretirement Benefits [Abstract]

Components of net periodic benefit cost

	Pension Benefits						Other Benefits						Superannuation, SERP(1)  and ESBP(2)
	For the Three Months Ended June 30,						For the Three Months Ended June 30,						For the Three Months Ended June 30,
(Dollars in millions)	2012			2011			2012			2011			2012		2011
Components of net periodic benefit cost:
Service cost	$	21		$	15		$	3		$	3		$	—	$	1
Interest cost		24			25			3			3			1		1
Expected return on plan assets		(36	)		(36	)		(3	)		(3	)		—		—
Recognized net actuarial loss		21			12			2			1			—		—
Total net periodic benefit cost	$	30		$	16		$	5		$	4		$	1	$	2

	Pension Benefits						Other Benefits						Superannuation, SERP(1)  and ESBP(2)
	For the Six Months Ended June 30,						For the Six Months Ended June 30,						For the Six Months Ended June 30,
(Dollars in millions)	2012			2011			2012			2011			2012		2011
Components of net periodic benefit cost:
Service cost	$	39		$	29		$	6		$	6		$	—	$	1
Interest cost		50			49			6			6			2		2
Expected return on plan assets		(73	)		(73	)		(6	)		(6	)		—		—
Recognized net actuarial loss		44			22			4			3			1		—
Total net periodic benefit cost	$	60		$	27		$	10		$	9		$	3	$	3

⁽¹⁾ Supplemental Executives Retirement Plan (SERP).

⁽²⁾ Executive Supplemental Benefit Plans (ESBP).