Goodwill and Other Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Goodwill and Other Intangible Assets [Line Items]
Goodwill impairment	$ 0	$ 0
Aggregate pre-tax amortization expense	277	176	252
Pre-tax amortization expense, 2012	338
Pre-tax amortization expense, 2013	338
Pre-tax amortization expense, 2014	338
Pre-tax amortization expense, 2015	332
Pre-tax amortization expense, 2016	269
Danisco [Member]
Goodwill and Other Intangible Assets [Line Items]
Pre-tax amortization expense, 2012	110
Pre-tax amortization expense, 2013	110
Pre-tax amortization expense, 2014	110
Pre-tax amortization expense, 2015	110
Pre-tax amortization expense, 2016	$ 110