Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2014

Notes to Condensed Consolidated Financial Statements [Abstract]

Schedule of Defined Benefit Plans Disclosures [Text Block]

	Pension Benefits Nine Months Ended September 30,						Other Postretirement Benefits Nine Months Ended September 30,
(Dollars in millions)	2014			2013			2014			2013
Service cost	$	366		$	428		$	3		$	3
Interest cost	1,141			1,029			30			28
Expected return on plan assets	(1,663		)	(1,579		)	—			—
Amortization	(7		)	(26		)	—			(8		)
Recognized actuarial net loss (gain)	322			717			(3		)	(3		)
Net settlement and curtailment loss (gain)	8			(17		)	—			—
Total net periodic benefit cost	$	167		$	552		$	30		$	20

	Pension Benefits Quarter Ended September 30,						Other Postretirement Benefits Quarter Ended September 30,
(Dollars in millions)	2014			2013			2014			2013
Service cost	$	122		$	142		$	1		$	1
Interest cost	381			343			10			9
Expected return on plan assets	(555		)	(526		)	—			—
Amortization	(3		)	(8		)	—			(2		)
Recognized actuarial net loss (gain)	108			237			(1		)	(1		)
Net settlement and curtailment loss	2			—			—			—
Total net periodic benefit cost	$	55		$	188		$	10		$	7

	Quarter Ended September 30,				Nine Months Ended September 30,
(Dollars in millions)	2014		2013		2014		2013
Defined benefit plans	$	60	$	21	$	204	$	72
Defined contribution plans	$	79	$	75	$	249	$	258