Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,362	$ 1,158	$ 3,980	$ 3,352
Currency translation adjustments	(72)	42	(34)	(46)
Unrealized gain on certain investments, net of tax of $1, $0, ($1) and $0	(1)		2
Unrealized (loss)/gain on derivative instruments [Abstract]
Unrealized gain/(loss) arising during period, net of tax of $50, ($20), $36 and $31	(89)	35	(64)	(54)
Reclassification adjustment for losses/(gains) included in net earnings, net of tax of $1, $5, $1 and $8	(3)	(10)	(2)	(13)
Total unrealized (loss)/gain on derivative instruments, net of tax	(92)	25	(66)	(67)
Defined benefit pension plans & other postretirement benefits [Abstract]
Amortization of prior service cost included in net periodic pension cost, net of tax of ($3), ($3), ($9) and ($6)	5	4	16	9
Net actuarial gain arising during the period, net of tax of ($1), ($56), ($348) and ($72)	1	101	623	131
Amortization of actuarial losses included in net periodic pension cost, net of tax of ($90), ($213), ($275) and ($644)	165	380	498	1,135
Settlements and curtailments included in net income, net of tax of $0, ($30), ($113) and ($35)		54	202	63
Pension and postretirement benefit related to our equity method investments, net of tax $0 ($1), $0 and ($2)		1		4
Total defined benefit pension plans and other postretirement benefits, net of tax	171	540	1,339	1,342
Other comprehensive income, net of tax	6	607	1,241	1,229
Comprehensive income/(loss) related to noncontrolling interests	3	(18)	9	3
Comprehensive income, net of tax	$ 1,371	$ 1,747	$ 5,230	$ 4,584