Summary of Significant Accounting Policies (Details) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019 USD ($) country	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) segment country	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jul. 01, 2019	Jan. 01, 2019 USD ($)	Dec. 31, 2016 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of countries in which products are sold (over 150) | country	150								150
Number of operating segments | segment									4
Net revenues	$ 6,913	$ 6,355	$ 6,062	$ 6,538	$ 6,773	$ 6,288	$ 6,112	$ 6,765	$ 25,868	$ 25,938	$ 25,896
Number of countries in which entity operates (over 80) | country	80								80
Restricted cash recorded within other current assets	$ 37								$ 37
Total cash, cash equivalents and restricted cash	1,328				1,100				1,328	1,100	761			$ 1,741
Outstanding principal amount of receivables sold under factoring arrangement	760				$ 819				760	819	843
Advertising expense									1,208	1,173	1,248
Research and development expense									351	362	366
ASU 2016-02
Summary Of Significant Accounting Policies [Line Items]
Lease related assets													$ 710
Lease related liabilities													$ 730
Europe
Summary Of Significant Accounting Policies [Line Items]
Weighted-average cost of capital rate												5.90%
North America
Summary Of Significant Accounting Policies [Line Items]
Weighted-average cost of capital rate												5.90%
Latin America
Summary Of Significant Accounting Policies [Line Items]
Risk-rated discount rate												8.90%
AMEA
Summary Of Significant Accounting Policies [Line Items]
Risk-rated discount rate												8.90%
Maximum
Summary Of Significant Accounting Policies [Line Items]
Incremental cost of factoring receivables									$ 10	10	$ 10
Machinery and equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Useful life, in years									3 years
Machinery and equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful life, in years									20 years
Buildings and building improvements | Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful life, in years									40 years
Software | Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful life, in years									7 years
Argentina
Summary Of Significant Accounting Policies [Line Items]
Net monetary liabilities (less than)	$ 1								$ 1
Net revenues									$ 382
Percentage of consolidated net revenues									1.50%
U.K. | Geographic Concentration Risk | Net Revenues
Summary Of Significant Accounting Policies [Line Items]
Concentration risk percentage									8.60%
Selling, general and administrative expenses | Argentina
Summary Of Significant Accounting Policies [Line Items]
Remeasurement gain (loss) due to inflationary accounting									$ 4	$ (11)