Pension and Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2013

Pension and Postretirement Benefit Plans

Components of net periodic benefit cost (benefit)

		Three months ended June 30,
		Qualified and Non-qualified
		Pension Benefits								Postretirement
		United States				International				Benefits
(Millions)		2013		2012		2013		2012		2013		2012
Net periodic benefit cost (benefit)
	Service cost	$	64	$	64	$	36	$	31	$	20	$	20
	Interest cost		149		146		61		62		22		21
	Expected return on plan assets		(261)		(248)		(75)		(73)		(23)		(22)
	Amortization of transition (asset) obligation		―		―		―		―		―		―
	Amortization of prior service cost (benefit)		1		1		(5)		(5)		(16)		(18)
	Amortization of net actuarial (gain) loss		100		118		40		30		24		28
Net periodic benefit cost (benefit)		$	53	$	81	$	57	$	45	$	27	$	29
Settlements, curtailments, special termination benefits and other			―		―		―		―		―		―
Net periodic benefit cost (benefit) after settlements, curtailments,
	special termination benefits and other	$	53	$	81	$	57	$	45	$	27	$	29
		Six months ended June 30,
		Qualified and Non-qualified
		Pension Benefits								Postretirement
		United States				International				Benefits
(Millions)		2013		2012		2013		2012		2013		2012
Net periodic benefit cost (benefit)
	Service cost	$	128	$	127	$	72	$	62	$	40	$	39
	Interest cost		299		293		122		123		44		43
	Expected return on plan assets		(522)		(496)		(150)		(146)		(45)		(43)
	Amortization of transition (asset) obligation		―		―		(1)		(1)		―		―
	Amortization of prior service cost (benefit)		2		3		(9)		(9)		(33)		(36)
	Amortization of net actuarial (gain) loss		200		235		80		60		48		55
Net periodic benefit cost (benefit)		$	107	$	162	$	114	$	89	$	54	$	58
Settlements, curtailments, special termination benefits and other			―		26		―		―		―		―
Net periodic benefit cost (benefit) after settlements, curtailments,
	special termination benefits and other	$	107	$	188	$	114	$	89	$	54	$	58