Acquisitions (Details) $ in Millions						12 Months Ended
	Mar. 09, 2017 USD ($)	Dec. 29, 2016 USD ($)	Nov. 29, 2016 USD ($)	Aug. 03, 2015 USD ($)	Mar. 11, 2015 USD ($) Plant	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Goodwill						$ 803	$ 784	$ 601
Consideration net of cash						17	407	434
TIC Gums
Business Acquisition [Line Items]
Goodwill		$ 177
Consideration net of cash		396
Kerr
Business Acquisition [Line Items]
Goodwill				$ 27
Consideration net of cash				102
Shandong Huanong
Business Acquisition [Line Items]
Cash consideration			$ 12
Sun Flour
Business Acquisition [Line Items]
Total purchase consideration	$ 18
Cash consideration						16
Liabilities assumed						2
Penford
Business Acquisition [Line Items]
Total purchase consideration					$ 332
Extinguishment of debt in conjunction with the acquisition					$ 93
Number of Plants | Plant					6
North America
Business Acquisition [Line Items]
Goodwill						600	610	424
North America | TIC Gums
Business Acquisition [Line Items]
Goodwill		175
North America | Kerr
Business Acquisition [Line Items]
Goodwill				$ 27
North America | Penford
Business Acquisition [Line Items]
Goodwill					$ 121
Asia Pacific
Business Acquisition [Line Items]
Goodwill						$ 107	$ 85	$ 86
Asia Pacific | TIC Gums
Business Acquisition [Line Items]
Goodwill		$ 2
Asia Pacific | Sun Flour
Business Acquisition [Line Items]
Goodwill	$ 14