Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net earnings	$ 4,585	$ 3,900	$ 4,018
Currency translation adjustments	(64)	17	(35)
Unrealized loss on certain investments, net of tax of $0, $0 and $1			(2)
Unrealized (loss)/gain on derivative instruments:
Unrealized (loss)/gain arising during period, net of tax of $42, ($13) and $7	(75)	25	(13)
Reclassification adjustment for gains included in net earnings, net of tax of $9, $3 and $9	(17)	(5)	(16)
Total unrealized (loss)/gain on derivative instruments, net of tax	(92)	20	(29)
Defined benefit pension plans & other postretirement benefits:
Prior service (cost)/benefit arising during the period, net of tax of $41, $9 and ($195)	(74)	(16)	338
Amortization of prior service cost included in net periodic pension cost, net of tax of ($6), ($10) and ($54)	10	18	94
Net actuarial gain/(loss) arising during the period, net of tax of ($3,437), $1,382 and $2,297	6,143	(2,401)	(3,993)
Amortization of actuarial losses included in net periodic pension cost, net of tax of ($849), ($752) and ($523)	1,516	1,304	909
Settlements and curtailments included in net income, net of tax of ($33), ($9) and ($25)	59	15	42
Pension and postretirement benefit/(cost) related to our equity method investments, net of tax ($13), ($74) and $38	24	127	(66)
Total defined benefit pension plans & other postretirement benefits, net of tax	7,678	(953)	(2,676)
Other comprehensive income/(loss), net of tax	7,522	(916)	(2,742)
Comprehensive income/(loss) related to non-controlling interest	9	3	(1)
Comprehensive income, net of tax	$ 12,116	$ 2,987	$ 1,275