Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2013

Jun. 30, 2012

Change in Accounting Principle [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

	Three Months Ended June 30, 2013							Six Months Ended June 30, 2013
	As reported		As reported under LIFO		Change: (Decrease)/Increase			As reported		As reported under LIFO		Change: (Decrease)/Increase
Cost of goods sold	$	6,057	$	6,067	$	(10	)	$	12,250	$	12,271	$	(21	)
Income from continuing operations before income taxes	1,365		1,355		10			3,139		3,118		21
Provision for income taxes on continuing operations	335		332		3			722		716		6
Income from continuing operations after income taxes	1,030		1,023		7			2,417		2,402		15
Income from discontinued operations after income taxes	4		4		—			1,972		1,972		—
Net income	$	1,034	$	1,027	$	7		$	4,389	$	4,374	$	15

	Three Months Ended June 30, 2012							Six Months Ended June 30, 2012
	As reported		As reported under LIFO		Change: (Decrease)/Increase			As reported		As reported under LIFO		Change: (Decrease)/Increase
Cost of goods sold	$	5,844	$	5,830	$	14		$	11,779	$	11,771	$	8
Income from continuing operations before income taxes	1,496		1,510		(14		)	3,297		3,305		(8		)
Provision for income taxes on continuing operations	397		400		(3		)	789		792		(3		)
Income from continuing operations after income taxes	1,099		1,110		(11		)	2,508		2,513		(5		)
Income from discontinued operations after income taxes	76		78		(2		)	171		175		(4		)
Net income	$	1,175	$	1,188	$	(13	)	$	2,679	$	2,688	$	(9	)