Equity (Tables)

3 Months Ended

Mar. 31, 2012

Equity [Abstract]

Earnings per Share [Table Text Block]

Quarters ended March 31, 2012 and April 2, 2011:
			Net income	Average
			attributable to	shares		Earnings
(millions, except per share data)			Kellogg Company	outstanding		per share
2012
	Basic	$	358	357	$	1.00
	Dilutive potential common shares			2		―
	Diluted	$	358	359	$	1.00
2011
	Basic	$	366	365	$	1.00
	Dilutive potential common shares			3		―
	Diluted	$	366	368	$	1.00

Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated other comprehensive income (loss) as of March 31, 2012 and December 31, 2011 consisted of the following:
			March 31,		December 31,
(millions)			2012		2011
Foreign currency translation adjustments		$	(799)	$	(896)
Cash flow hedges — unrealized net gain (loss)			(11)		(9)
Postretirement and postemployment benefits:
	Net experience loss		(1,470)		(1,483)
	Prior service cost		(68)		(70)
Total accumulated other comprehensive income (loss)		$	(2,348)	$	(2,458)