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Segment Information - Restructuring charges (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment information
Restructuring charges	$ 16	$ 27	$ 5	$ 3	$ 10	$ 5	$ 5	$ 11	$ 64	$ 38
Cost Smart Cost of Sales Program
Segment information
Restructuring charges									49
Cost Smart Cost of Sales Program | Employee-related severance costs
Segment information
Restructuring charges									3
Cost Smart SG&A Program
Segment information
Restructuring charges									11
Argentina organizational restructuring effort | Employee-related severance and other costs
Segment information
Restructuring charges										17
Brazil leaf extraction Process restructuring
Segment information
Restructuring charges									1	13
Finance Transformation Initiative
Segment information
Restructuring charges									$ 3
Finance Transformation Initiative | Employee-related severance and other costs
Segment information
Restructuring charges										6
North America restructuring plans and prior year restructuring activities | Employee-related severance, other costs and adjustments
Segment information
Restructuring charges										2
IT transformation | Employee-related severance and other costs
Segment information
Restructuring charges											$ 11
Optimization Initiative Of North And South America | Employee-related severance costs
Segment information
Restructuring charges											6
Optimization Initiative Of North And South America | Employee-related severance and other costs
Segment information
Restructuring charges										$ 6
Port Colborne Ontario Canada Plant | Facility closure costs
Segment information
Restructuring charges											$ 2

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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