Pension and Postretirement Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2015

Pension and Postretirement Benefit Plans

Components of net periodic benefit cost (benefit)

		Three months ended March 31,
		Qualified and Non-qualified
		Pension Benefits								Postretirement
		United States				International				Benefits
(Millions)		2015		2014		2015		2014		2015		2014
Net periodic benefit cost (benefit)
Service cost		$	73	$	60	$	42	$	36	$	21	$	16
Interest cost			164		169		55		64		25		24
Expected return on plan assets			(267)		(261)		(81)		(79)		(22)		(22)
Amortization of transition (asset) obligation			―		―		―		―		―		―
Amortization of prior service cost (benefit)			(6)		1		(4)		(4)		(8)		(12)
Amortization of net actuarial (gain) loss			102		61		38		31		19		14
Net periodic benefit cost (benefit)		$	66	$	30	$	50	$	48	$	35	$	20
Settlements, curtailments, special termination benefits and other			―		―		(17)		―		―		―
Net periodic benefit cost (benefit) after settlements, curtailments,
	special termination benefits and other	$	66	$	30	$	33	$	48	$	35	$	20