Restructuring and Related Implementation Charges - Restructuring Activity and Related Accruals (Details) - Global Growth and Efficiency Program - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 202
Charges	29	$ 28
Cash payments	(24)
Charges against assets	(12)
Foreign exchange	(1)
Other	(48)
Ending Balance	146
Employee-Related Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	60
Charges	10
Cash payments	(16)
Charges against assets	(1)
Foreign exchange	(1)
Other	0
Ending Balance	52
Incremental Depreciation
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Charges	5
Cash payments	0
Charges against assets	(5)
Foreign exchange	0
Other	0
Ending Balance	0
Asset Impairments
Restructuring Reserve [Roll Forward]
Beginning Balance	0
Charges	6
Cash payments	0
Charges against assets	(6)
Foreign exchange	0
Other	0
Ending Balance	0
Other
Restructuring Reserve [Roll Forward]
Beginning Balance	142
Charges	8
Cash payments	(8)
Charges against assets	0
Foreign exchange	0
Other	(48)
Ending Balance	$ 94

Restructuring Reserve, Charges Against Assets

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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- Definition

Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

+ References

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-Publisher FASB
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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

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Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases).

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