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]	Accumulated Other Comprehensive Income (Loss) [Member]		Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2011		$ 818	$ 13,041	$ 8,767	$ (2,024)	$ 476		$ 21,078	$ 51	$ 21,129
Net income				1,636				1,636	(5)	1,631
Other comprehensive loss						(120)	[1]	(120)	1	(119)
Purchase of common stock for treasury					(719)			(719)		(719)
Shares issued to benefit plans and for option exercises		7	105		(1)			111		111
Dividends on shares				(472)				(472)		(472)
Other, net				1	(29)			(28)		(28)
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

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