Consolidated Statements of Changes in Shareholders’ Equity - USD ($) $ in Millions	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]		Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2012		$ 825	$ 13,146	$ 9,932	$ (2,773)	$ 356		$ 21,486	$ 47	$ 21,533
Net income				1,961				1,961		1,961
Other comprehensive loss						(312)	[1]	(312)		(312)
Purchase of common stock for treasury			(200)		(1,316)			(1,516)		(1,516)
Shares issued to benefit plans and for option exercises		6	139		(1)			144		144
Dividends on shares				(566)				(566)		(566)
Other, net			(19)	(7)	(9)			(35)	2	(33)
Balance at Dec. 31, 2013		831	13,066	11,320	(4,099)	44		21,162	49	21,211
Net income				2,472				2,472	3	2,475
Other comprehensive loss						(1,351)	[1]	(1,351)	(1)	(1,352)
Shares issued for acquisition of equity investment company	$ 1,900							1,900	15	1,915
Shares issued for cash	400							400		400
Purchase of common stock for treasury			129		(2,612)			(2,483)		(2,483)
Shares issued to benefit plans and for option exercises		5	261		(2)			264		264
Dividends on shares				(771)				(771)		(771)
Other, net					(14)			(14)	7	(7)
Balance at Dec. 31, 2014	2,300	836	13,456	13,021	(6,727)	(1,307)		21,579	73	21,652
Net income				1,339				1,339	9	1,348
Other comprehensive loss						(504)	[1]	(504)	(1)	(505)
Purchase of common stock for treasury			(250)		(2,978)			(3,228)		(3,228)
Shares issued to benefit plans and for option exercises		4	146		(1)			149		149
Dividends on shares				(528)				(528)		(528)
Other, net					(19)			(19)	(6)	(25)
Balance at Dec. 31, 2015	$ 2,300	$ 840	$ 13,352	$ 13,832	$ (9,725)	$ (1,811)		$ 18,788	$ 75	$ 18,863

[1] All amounts are after tax. Amounts in parentheses indicate debits to accumulated other comprehensive income.