Income Taxes (Narrative) (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Income Tax Examination [Line Items]
Income tax rate	33.20%		34.60%	34.60%
Decrease in income tax percentaqe	0.7
Tax (benefit) provision recorded	$ 41,000,000	$ (19,000,000)
Accrued interest and penalties included in liability for tax contingencies	12,000,000		$ 12,000,000		$ 57,000,000
Unrecognized tax benefits	135,000,000		135,000,000		258,000,000
Unrecognized tax benefits that would impact effective tax rate	86,000,000		86,000,000		207,000,000
Unrecognized tax benefits that would impact deferred tax rate	49,000,000		49,000,000		51,000,000
Decrease in unrecognized tax benefits (approximately)	5,000,000		5,000,000
Unrecognized Tax Benefits, Impact on Net Earnings					177,000,000
PMI [Member]
Income Tax Examination [Line Items]
Accrued interest and penalties included in liability for tax contingencies					7,000,000
Unrecognized tax benefits	0		0
Unrecognized Tax Benefits, Impact on Net Earnings	0	0	0	$ 0
Net receivable for tax obligations under tax sharing agreements					30,000,000
Mondelez [Member]
Income Tax Examination [Line Items]
Unrecognized tax benefits					$ 0
Unrecognized Tax Benefits, Impact on Net Earnings	0	0	$ 0	$ 0
Mondelez and PMI [Member]
Income Tax Examination [Line Items]
Tax (benefit) provision recorded	(41,000,000)	$ (5,000,000)
Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Tax (benefit) provision recorded	$ (59,000,000)