Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Noncurrent deferred tax liabilities	$ 91	$ 91	$ 90
Loss on deconsolidation of Venezuelan subsidiary	646	646	0	$ 0
Derecognition of the carrying amounts of assets and liabilities included in deconsolidation charge		320	0	0
Losses previously included in Accumulated Other Comprehensive Loss included in deconsolidation charge		248	0	0
Research and development expenditures		382	399	390
Advertising costs		385	430	408
Maximum cash investments with single counterparty	306	306
Capital lease obligations		3	12	19
Capitalized costs related to the Global and North America Headquarters facility and parking deck				18
Accrued capital expenditures remaining unpaid		254
Payments for capital expenditures accrued and unpaid in prior year		212
Restricted net assets	$ 551	551
Depreciation expense for property, plant and equipment		$ 697	730	$ 719
New Accounting Pronouncement, Early Adoption, Effect
Increase in noncurrent deferred income tax assets			500
Decrease in current deferred income tax assets			565
Noncurrent deferred tax liabilities			(60)
Decrease in current deferred income tax liabilities			$ 5