Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,653	$ 1,088	$ 2,618	$ 2,194
Currency translation adjustments	21	(65)	38	(88)
Unrealized gain on certain investments, net of tax of ($1), $0, ($2) and $0	1		3
Unrealized (loss)/gain on derivative instruments [Abstract]
Unrealized gain/(loss) arising during period, net of tax of ($20), $36, ($14) and $51	36	(63)	25	(89)
Reclassification adjustment for losses/(gains) included in net earnings, net of tax of $3, $4, $0 and $3	(4)	(5)	1	(3)
Total unrealized gain/(loss) on derivative instruments, net of tax	32	(68)	26	(92)
Defined benefit pension plans & other postretirement benefits [Abstract]
Amortization of prior service cost included in net periodic pension cost, net of tax of ($3), ($2), ($6) and ($3)	5	2	11	5
Net actuarial gain arising during the period, net of tax of ($1), $0, ($347) and ($16)	2		622	30
Amortization of actuarial losses included in net periodic pension cost, net of tax of ($91), ($216), ($185) and ($431)	164	377	333	755
Settlements and curtailments included in net income, net of tax of $0, $0, ($113) and ($5)	(1)		202	9
Pension and postretirement benefit related to our equity method investments, net of tax $0 $0, $0 and ($1)		1		3
Total defined benefit pension plans and other postretirement benefits, net of tax	170	380	1,168	802
Other comprehensive income, net of tax	224	247	1,235	622
Comprehensive income related to noncontrolling interests	3	19	6	21
Comprehensive income, net of tax	$ 1,880	$ 1,354	$ 3,859	$ 2,837