Consolidated Balance Sheet Statement - USD ($) $ in Millions	Jan. 02, 2016	Jan. 03, 2015
Assets, Current [Abstract]
Cash and cash equivalents	$ 251	$ 443
Accounts receivable, net	1,344	1,276
Inventories	1,250	1,279
Other current assets	391	342
Total current assets	3,236	3,340
Property, net	3,621	3,769
Goodwill	4,968	4,971
Other intangibles, net	2,268	2,295
Investment in unconsolidated entities	456	1
Other assets	716	777
Total assets	15,265	15,153
Liabilities, Current [Abstract]
Current maturities of long-term debt	1,266	607
Notes payable	1,204	828
Accounts payable	1,907	1,528
Other current liabilities	1,362	1,401
Total current liabilities	5,739	4,364
Long-term debt	5,289	5,935
Deferred income taxes	685	726
Pension liability	946	777
Other liabilities	468	500
Commitments and contingencies	0	0
Equity [Abstract]
Common stock, $.25 par value, 1,000,000,000 shares authorized Issued: 420,315,589 shares in 2015 and 420,125,937 shares in 2014	105	105
Capital in excess of par value	745	678
Retained earnings	6,597	6,689
Treasury stock, at cost 70,291,514 shares in 2015 and 64,123,181 shares in 2014	(3,943)	(3,470)
Accumulated other comprehensive income (loss)	(1,376)	(1,213)
Total Kellogg Company equity	2,128	2,789
Noncontrolling interests	10	62
Total equity	2,138	2,851
Total liabilities and equity	$ 15,265	$ 15,153