Accumulated Other Comprehensive (Loss) Income (AOCI) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	$ (630)	$ (557)	$ (631)	$ (553)
OCI	109	(43)	106	(59)
Income taxes	(21)	(4)	(14)	5
Cost of sales	1,257	1,087	3,760	3,323
Other (income) expense	(47)	(42)	(143)	(140)
Income taxes	(115)	56	(268)	(214)
Net OCI	77	(47)	78	(51)
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(553)	(604)	(553)	(604)
Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	(2)	(2)	(4)	(4)
Other (income) expense	(6)	2	(3)	7
Income taxes	(3)	0	(7)	0
Net OCI	77	(47)	78	(51)
Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	(3)	(5)	(4)	(4)
OCI	0	1	1	(1)
Income taxes	0	0	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(3)	(5)	(3)	(5)
Marketable Securities \| Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	0	0	0	0
Other (income) expense	0	(1)	0	0
Income taxes	0	0	0	0
Net OCI	0	0	1	(1)
Pension Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	(148)	(132)	(137)	(134)
OCI	11	(2)	(5)	(6)
Income taxes	1	(2)	4	1
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(135)	(135)	(135)	(135)
Pension Plans \| Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	0	0	0	0
Other (income) expense	1	2	4	6
Income taxes	0	(1)	(1)	(2)
Net OCI	13	(3)	2	(1)
Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	37	45	50	28
OCI	(18)	8	(34)	32
Income taxes	10	(2)	18	(8)
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	22	51	22	51
Hedges \| Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	(2)	(2)	(4)	(4)
Other (income) expense	0	1	0	1
Income taxes	(5)	1	(8)	2
Net OCI	(15)	6	(28)	23
Financial Statement Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	(516)	(465)	(540)	(443)
OCI	116	(50)	144	(84)
Income taxes	(32)	0	(36)	12
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(437)	(515)	(437)	(515)
Financial Statement Translation \| Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	0	0	0	0
Other (income) expense	(7)	0	(7)	0
Income taxes	2	0	2	0
Net OCI	$ 79	$ (50)	$ 103	$ (72)

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

No definition available.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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