Discontinued Operations (Tax Items) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended			3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011 North American Refrigerated Dough [Member]	Dec. 31, 2011 North American Fresh Bakery [Member]	Dec. 31, 2011 North American Fresh Bakery [Member]	Jan. 01, 2011 Air Care Products [Member]	Jan. 01, 2011 Air Care Products [Member]	Jul. 02, 2011 Air Care Products [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Tax on the gain on sale related to repatriation of earnings										$ 77
Tax benefit related to tax basis differences of discontinued operation						71	189
Tax expense recognized	169	396	339	562	158	37	37	13	179
Goodwill that had no tax basis, impacted					$ 254