Change in Accounting Method (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Jan. 02, 2011	Dec. 31, 2010
Condensed consolidated results of operations
Manufacturing, shipping and delivery expense	$ (1,405)	$ (1,475)	$ (4,156)	$ (4,455)
Amounts attributable to the Company:
Net earnings from continuing operations	92	119	348	273
Basic earnings per share (in dollars per share)	$ 0.55	$ 0.73	$ 2.11	$ 1.66
Diluted earnings per share (in dollars per share)	$ 0.55	$ 0.72	$ 2.10	$ 1.64
Assets:
Inventories	1,228	1,101	1,228	1,101		1,061
Share owners' equity:
Retained earnings	(35)	392	(35)	392		(379)
Consolidated share owners' equity
Share owners' equity	1,436	2,143	1,436	2,143	1,244	1,041	2,339		2,065
Condensed consolidated cash flows
Net earnings	97	120	359	286
Change in components of working capital			(325)	(235)
Retained earnings
Consolidated share owners' equity
Share owners' equity	(35)	392	(35)	392	(125)	(379)	276	121	121
Condensed consolidated cash flows
Net earnings	90	116	344	271
Change in accounting method for valuation of inventories
Effect of change in accounting method
Effect of a change in accounting method on manufacturing, shipping and delivery expenses	(3)		(2)
Effect of a change in accounting method on net earnings	3		2
Effect of a change in accounting method on basic earnings per share (in dollars per share)	$ 0.02		$ 0.01
Effect of a change in accounting method on diluted earnings per share (in dollars per share)	$ 0.02		$ 0.01
Originally reported under LIFO
Condensed consolidated results of operations
Manufacturing, shipping and delivery expense				(4,465)
Amounts attributable to the Company:
Net earnings from continuing operations				263
Basic earnings per share (in dollars per share)				$ 1.60
Diluted earnings per share (in dollars per share)				$ 1.58
Assets:
Inventories		1,052		1,052		1,012
Share owners' equity:
Retained earnings		343		343		(428)
Condensed consolidated cash flows
Net earnings				276
Change in components of working capital				(225)
Originally reported under LIFO | Retained earnings
Consolidated share owners' equity
Share owners' equity								82
Effect of Change | Change in accounting method for valuation of inventories
Condensed consolidated results of operations
Manufacturing, shipping and delivery expense				10
Amounts attributable to the Company:
Net earnings from continuing operations				10
Basic earnings per share (in dollars per share)				$ 0.06
Diluted earnings per share (in dollars per share)				$ 0.06
Assets:
Inventories		49		49
Share owners' equity:
Retained earnings		49		49
Condensed consolidated cash flows
Net earnings				10
Change in components of working capital				(10)
Effect of Change | Change in accounting method for valuation of inventories | Retained earnings
Consolidated share owners' equity
Share owners' equity								$ 39