Employee Benefit Plans

Pension and Postretirement Plans. We sponsor both funded and unfunded domestic and foreign defined pension and other postretirement benefit plans, and defined contribution plans. Contributions to our plans were as follows:



	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

There were no contributions to our domestic defined benefit pension plans in the quarters and six months ended June 30, 2014 and 2013.

The following table illustrates the components of net periodic benefit cost for our defined pension and other postretirement benefit plans:



	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



	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

Net settlement and curtailment gain for pension benefits includes curtailment gains of approximately $19 million and $24 million related to, and recorded in, discontinued operations for the quarter and six months ended June 30, 2013, respectively.