Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2013

Notes to Condensed Consolidated Financial Statements [Abstract]

Schedule of Defined Benefit Plans Disclosures [Text Block]

	Quarter Ended June 30,				Six Months Ended June 30,
(Dollars in millions)	2013		2012		2013		2012
Defined Benefit Plans	$	22	$	11	$	51	$	24
Defined Contribution Plans	$	80	$	56	$	183	$	118

	Pension Benefits Six Months Ended June 30,						Other Postretirement Benefits Six Months Ended June 30,
(Dollars in millions)	2013			2012			2013			2012
Service cost	$	286		$	230		$	2		$	2
Interest cost	686			626			19			16
Expected return on plan assets	(1,053		)	(912		)	—			—
Amortization	(18		)	(6		)	(6		)	—
Recognized actuarial net loss (gain)	480			361			(2		)	(4		)
Net settlement and curtailment (gain) loss	(17		)	35			—			—
Total net periodic benefit cost	$	364		$	334		$	13		$	14

	Pension Benefits Quarter Ended June 30,						Other Postretirement Benefits Quarter Ended June 30,
(Dollars in millions)	2013			2012			2013			2012
Service cost	$	142		$	115		$	1		$	1
Interest cost	343			313			9			8
Expected return on plan assets	(526		)	(456		)	—			—
Amortization	(9		)	(3		)	(3		)	—
Recognized actuarial net loss (gain)	240			180			(1		)	(2		)
Net settlement and curtailment (gain) loss	(14		)	7			—			—
Total net periodic benefit cost	$	176		$	156		$	6		$	7