Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2014

Notes to Condensed Consolidated Financial Statements [Abstract]

Schedule of Defined Benefit Plans Disclosures [Text Block]

	Pension Benefits Six Months Ended June 30,						Other Postretirement Benefits Six Months Ended June 30,
(Dollars in millions)	2014			2013			2014			2013
Service cost	$	244		$	286		$	2		$	2
Interest cost	760			686			20			19
Expected return on plan assets	(1,108		)	(1,053		)	—			—
Amortization	(4		)	(18		)	—			(6		)
Recognized actuarial net loss (gain)	214			480			(2		)	(2		)
Net settlement and curtailment loss (gain)	6			(17		)	—			—
Total net periodic benefit cost	$	112		$	364		$	20		$	13

	Pension Benefits Quarter Ended June 30,						Other Postretirement Benefits Quarter Ended June 30,
(Dollars in millions)	2014			2013			2014			2013
Service cost	$	122		$	142		$	1		$	1
Interest cost	380			343			10			9
Expected return on plan assets	(554		)	(526		)	—			—
Amortization	(2		)	(9		)	—			(3		)
Recognized actuarial net loss (gain)	107			240			(1		)	(1		)
Net settlement and curtailment loss (gain)	6			(14		)	—			—
Total net periodic benefit cost	$	59		$	176		$	10		$	6

	Quarter Ended June 30,				Six Months Ended June 30,
(Dollars in millions)	2014		2013		2014		2013
Defined benefit plans	$	60	$	22	$	144	$	51
Defined contribution plans	$	80	$	80	$	170	$	183