Description of Business and Summary of Significant Accounting Policies - Narrative (Details) $ in Millions		12 Months Ended
	Jan. 01, 2018 USD ($)	Dec. 31, 2018 USD ($) Country division	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of company divisions | division		87
Number of countries with company operations | Country		55
Deferred revenue and customer deposits		$ 215	$ 205
Research and development expenses		233	225	$ 223
Advertising expenses		$ 50	$ 53	58
Percentage of total inventories priced at LIFO		23.00%	21.00%
LIFO reserve		$ 97	$ 89
Depreciation included in income from continuing operations		272	256	246
Excess tax benefits from stock-based compensation				29
Effective tax rate, share-based compensation, excess tax benefit, amount		10	50
Adoption of new accounting guidance			(415)
Retained earnings		21,217	20,210
Other cost (credit)		(20)	(9)	(8)
Tax cuts and jobs act, reclassification from aoci to retained earnings, tax effect	$ 45	$ 45	0	$ 0
Minimum
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible asset, useful life		3 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible asset, useful life		20 years
Accounting Standards Update 2016-02
Finite-Lived Intangible Assets [Line Items]
Operating lease, right-of-use asset, percent of assets		2.00%
Operating lease, liability, percent of assets		2.00%
Deferred Tax Assets | Accounting Standards Update 2016-16
Finite-Lived Intangible Assets [Line Items]
Adoption of new accounting guidance	(406)
Retained Earnings | Accounting Standards Update 2016-16
Finite-Lived Intangible Assets [Line Items]
Adoption of new accounting guidance	(406)
Retained Earnings
Finite-Lived Intangible Assets [Line Items]
Adoption of new accounting guidance			$ (370)
Retained Earnings | Accounting Standards Update 2014-09
Finite-Lived Intangible Assets [Line Items]
New accounting pronouncement or change in accounting principle, cumulative effect of change on equity or net assets	$ (9)