Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule Of Quarterly Financial Data Net Sales And Gross Profit [Table Text Block]

	Net sales				Gross profit
(millions)	2016		2015		2016		2015
First	$	3,395	$	3,556	$	1,245	$	1,245
Second	3,268		3,498		1,270		1,241
Third	3,254		3,329		1,264		1,233
Fourth	3,097		3,142		976		962
	$	13,014	$	13,525	$	4,755	$	4,681

Schedule Of Quarterly Financial Data Net Income And Earnings Per Share [Table Text Block]

	Net income attributable     to Kellogg Company						Per share amounts
(millions)	2016			2015			2016						2015
							Basic			Diluted			Basic			Diluted
First	$	175		$	227		$	0.50		$	0.49		$	0.64		$	0.64
Second	280			223			0.80			0.79			0.63			0.63
Third	292			205			0.83			0.82			0.58			0.58
Fourth	(53		)	(41		)	(0.15		)	(0.15		)	(0.12		)	(0.12		)
	$	694		$	614

Schedule Of Quarterly Financial Data Dividends Per Share And Stock Prices [Table Text Block]

	Dividend per share		Stock price
2016 — Quarter			High		Low
First	$	0.50	$	77.86	$	69.96
Second	0.50		81.65		74.30
Third	0.52		86.98		77.13
Fourth	0.52		77.25		70.96
	$	2.04
2015 — Quarter
First	$	0.49	$	69.84	$	61.97
Second	0.49		66.38		61.31
Third	0.50		69.77		62.74
Fourth	0.50		73.51		66.03
	$	1.98

Schedule Of Quarterly Financial Data Charges Gain In Operating Profit [Table Text Block]

During 2016, the Company recorded the following charges (gains) in operating profit:

	2016
(millions)	First		Second			Third		Fourth		Full Year
Restructuring and cost reduction charges	$	52	$	72		$	40	$	161	$	325
(Gains) / losses on mark-to-market adjustments	24		(20		)	31		226		261
	$	76	$	52		$	71	$	387	$	586

During 2015, the Company recorded the following charges (gains) in operating profit:

	2015
(millions)	First		Second			Third		Fourth		Full Year
Restructuring and cost reduction charges	$	68	$	90		$	85	$	80	$	323
(Gains) / losses on mark-to-market adjustments	67		(35		)	27		387		446
	$	135	$	55		$	112	$	467	$	769