Consolidated Statements of Equity - USD ($) $ in Millions	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Reinvested Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2012	$ 10,299	$ 237	$ 306	$ 10,655	$ 14,232	$ (8,495)	$ (6,727)	$ 91
Sale of a majority interest in a consolidated subsidiary	(34)							(34)
Acquisition of a noncontrolling interest in consolidated subsidiaries	4			4
Net income	4,862				4,848			14
Other comprehensive income (loss)	3,203					3,205		(2)
Common dividends	(1,670)				(1,658)			(12)
Preferred dividends	(10)				(10)
Common Stock
Issued - compensation plans	632		4	628
Repurchased	(1,000)						(1,000)
Retired	0		(6)	(215)	(779)		1,000
Balance at Dec. 31, 2013	16,286	237	304	11,072	16,633	(5,290)	(6,727)	57
Sale of a majority interest in a consolidated subsidiary	(5)							(5)
Net income	3,636				3,625			11
Other comprehensive income (loss)	(3,265)					(3,266)		1
Common dividends	(1,701)				(1,695)			(6)
Preferred dividends	(10)				(10)
Common Stock
Issued - compensation plans	437		3	434
Repurchased	(2,000)						(2,000)
Retired	0		(9)	(332)	(1,659)		2,000
Balance at Dec. 31, 2014	13,378	237	298	11,174	16,894	(8,556)	(6,727)	58
Consolidation of a joint venture	150			(1)				151
Net income	1,959				1,953			6
Other comprehensive income (loss)	(1,308)					(1,308)
Common dividends	(1,546)				(1,542)			(4)
Preferred dividends	(10)				(10)
Common Stock
Issued - compensation plans	361		2	359
Repurchased	(2,353)						(2,353)
Retired	0		(12)	(451)	(1,890)		2,353
Spin-off of Chemours	(431)				(895)	468		(4)
Balance at Dec. 31, 2015	$ 10,200	$ 237	$ 288	$ 11,081	$ 14,510	$ (9,396)	$ (6,727)	$ 207