CONSOLIDATED STATEMENT OF EQUITY (USD $) In Millions, except Share data	Total	Common Stock Issued	Common Stock In Treasury	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balance at Dec. 31, 2011	$ 31,392	$ 11,639	$ (5,679)	$ 28,860	$ (3,557)	$ 129
Balance, shares at Dec. 31, 2011	1,334,000,000	1,434,000,000	(100,000,000)
Net income	5,519			5,490		29
Net income	5,519
Currency translation adjustments excluding amount from sale of CE Franklin	71				71
Change in unrealized gain on marketable securities	141				141
Changes in fair value of cash flow hedges	56				56
Pension and other postretirement benefit plans	(604)				(604)
Shares sold to optionees less shares exchanged	163	(75)	238
Shares sold to optionees, less shares exchanged, shares	4,000,000		4,000,000
Vesting of restricted stock		(20)	20
Shares issued under employee stock purchase plan	247	16	231
Shares issued under employee stock purchase plan, shares	4,000,000		4,000,000
Stock repurchase program	(972)		(972)
Stock repurchase program, shares	(14,000,000)		(14,000,000)
Stock-based compensation cost	335	335
Sale of CE Franklin	(63)				5	(68)
Dividends declared	(1,463)			(1,463)
Other	36	17	2			17
Currency translation adjustments	76
Change in unrealized gain on marketable securities	141				141
Shares sold to optionees, less shares exchanged, shares	4,171,000
Balance at Dec. 31, 2012	34,858	11,912	(6,160)	32,887	(3,888)	107
Balance, shares at Dec. 31, 2012	1,328,000,000	1,434,000,000	(106,000,000)
Net income	6,774			6,732		42
Change in unrealized gain on marketable securities	35				35
Changes in fair value of cash flow hedges	(1)				(1)
Pension and other postretirement benefit plans	1,451				1,451
Shares sold to optionees less shares exchanged	267	(44)	311
Shares sold to optionees, less shares exchanged, shares	5,000,000		5,000,000
Vesting of restricted stock		(56)	56
Vesting of restricted stock, shares	1,000,000		1,000,000
Shares issued under employee stock purchase plan	270	18	252
Shares issued under employee stock purchase plan, shares	4,000,000		4,000,000
Stock repurchase program	(2,596)		(2,596)
Stock repurchase program, shares	(31,000,000)		(31,000,000)
Stock-based compensation cost	315	315
Dividends declared	(1,653)			(1,653)
Other	66	47	2			17
Currency translation adjustments	(151)				(151)
Change in unrealized gain on marketable securities	35				35
Shares sold to optionees, less shares exchanged, shares	5,168,000
Balance at Dec. 31, 2013	39,635	12,192	(8,135)	37,966	(2,554)	166
Balance, shares at Dec. 31, 2013	1,307,000,000	1,434,000,000	(127,000,000)
Net income	5,506			5,438		68
Change in unrealized gain on marketable securities	(166)				(166)
Changes in fair value of cash flow hedges	(125)				(125)
Pension and other postretirement benefit plans	(898)				(898)
Shares sold to optionees less shares exchanged	530	(26)	556
Shares sold to optionees, less shares exchanged, shares	9,000,000		9,000,000
Vesting of restricted stock		(79)	79
Vesting of restricted stock, shares	1,000,000		1,000,000
Shares issued under employee stock purchase plan	295	33	262
Shares issued under employee stock purchase plan, shares	4,000,000		4,000,000
Stock repurchase program	(4,678)		(4,678)
Stock repurchase program, shares	(48,000,000)		(48,000,000)
Stock-based compensation cost	329	329
Dividends declared	(2,071)			(2,071)
Shares issued for acquisition	213	72	141
Other	(58)	(26)	3			(35)
Currency translation adjustments	(463)				(463)
Change in unrealized gain on marketable securities	(166)				(166)
Shares sold to optionees, less shares exchanged, shares	8,269,000
Shares issued for acquisition, shares	2,000,000		2,000,000
Balance at Dec. 31, 2014	$ 38,049	$ 12,495	$ (11,772)	$ 41,333	$ (4,206)	$ 199
Balance, shares at Dec. 31, 2014	1,275,000,000	1,434,000,000	(159,000,000)