Commitments and Contingencies (Details) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2014 USD ($) company	Dec. 31, 2017 USD ($) country_and_territory case	Dec. 31, 2016 USD ($) case	Dec. 31, 2015 USD ($)	Jul. 31, 2017 USD ($)
Operating leases,minimum rental commitments[Abstract]
Minimum rental commitments under noncancellable operating leases due within one year of the balance sheet date		$ 188
Minimum rental commitments under noncancellable operating leases due in two years of the balance sheet date		163
Minimum rental commitments under noncancellable operating leases due in three years of the balance sheet date		143
Minimum rental commitments under noncancellable operating leases due in four years of the balance sheet date		106
Minimum rental commitments under noncancellable operating leases due in five years of the balance sheet date		93
Minimum rental commitments under noncancellable operating leases due after five years of the balance sheet date		44
Operating leases, rental expense [Abstract]
Rental expense		211	$ 204	$ 214
Contractual commitments (Abstract)
Contractual commitments, amount		$ 467
Contingencies [Abstract]
Minimum number of countries and territories serving consumers (more than) (in countries and territories) | country_and_territory		200
Brazilian internal revenue authority, matter 1		$ 165
Brazilian internal revenue authority, matter 2		$ 74
Number of consumer goods companies | company	13
Fine imposed French competition authority	$ 57
Fine imposed French competition authority - as a result of Sanex Acquisition	$ 25
Fine imposed by greek competition authority					$ 11
Loss contingency, pending claims, number (in cases) | case		193	115
Loss contingency, new claims filed, number (in cases) | case		132
Loss contingency, claims dismissed or settled, number (in cases) | case		54
Minimum
Contingencies [Abstract]
Range of reasonably possible losses		$ 0
Maximum
Contingencies [Abstract]
Range of reasonably possible losses		$ 250