CONSOLIDATED STATEMENT OF EQUITY (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock Issued	Common Stock In Treasury	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balance at Dec. 31, 2014	$ 38,049	$ 12,495	$ (11,772)	$ 41,333	$ (4,206)	$ 199
Net income	988			975		13
Currency translation adjustments	(113)				(113)
Changes in unrealized gain on marketable securities	(18)				(18)
Changes in fair value of cash flow hedges	(34)				(34)
Pension and other postretirement benefit plans	86				86
Shares sold to optionees, less shares exchanged	38	(16)	54
Vesting of restricted stock		(39)	39
Shares issued under employee stock purchase plan	144	9	135
Stock repurchase program	(719)		(719)
Stock-based compensation expense	80	80
Dividends declared	(639)			(639)
Other	7	6	3			(2)
Balance at Mar. 31, 2015	37,869	12,535	(12,260)	41,669	(4,285)	210
Balance at Dec. 31, 2015	$ 35,905	$ 12,693	$ (13,372)	40,870	(4,558)	272
Balance, shares at Dec. 31, 2015	1,256	1,434	(178)
Net income	$ 523			501		22
Currency translation adjustments	17				17
Changes in unrealized gain on marketable securities	3				3
Changes in fair value of cash flow hedges	9				9
Pension and other postretirement benefit plans	63				63
Shares sold to optionees, less shares exchanged	$ 47	$ (17)	$ 64
Shares sold to optionees, less shares exchanged, shares	1		1
Vesting of restricted stock		(28)	$ 28
Shares issued under employee stock purchase plan	$ 116	(19)	$ 135
Shares issued under employee stock purchase plan, shares	2		2
Stock repurchase program	$ (475)		$ (475)
Stock repurchase program, shares	(7)		(7)
Stock-based compensation expense	$ 61	61
Dividends declared	(626)			(626)
Other	19	10				9
Balance at Mar. 31, 2016	$ 35,662	$ 12,700	$ (13,620)	$ 40,745	$ (4,466)	$ 303
Balance, shares at Mar. 31, 2016	1,252	1,434	(182)