Items Affecting Comparability of Net Income, Financial Position and Cash Flows (Details 3) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended			12 Months Ended
		Mar. 31, 2018	Mar. 31, 2017		Dec. 31, 2017	Jan. 01, 2018
Cash and cash equivalents		$ 982			$ 1,522
Total Revenues		1,371	$ 1,417
Net Cash Provided by Operating Activities		189	288
Net Cash Provided by (Used in) Investing Activities		164	104
Net Cash Provided by (Used in) Financing Activities		(976)	(629)
Operating Profit		553	484
Net Income (Loss) Attributable to Parent		$ 433	$ 280
Diluted Earnings Per Common Share		$ 1.27	$ 0.77
Accounts and notes receivable, net		$ 501			400
Prepaid expenses and other current assets		406			384
Investment Income, Net		66	$ 1
Advertising cooperative assets, restricted		0			201
Assets, Current		1,889			2,507
Property, plant and equipment, net		1,651			1,697
Goodwill		514			512
Intangible assets, net		105			110
Other assets		490			346
Deferred income taxes		187			139
Assets		4,836			5,311
Accounts payable and other current liabilities		924			813
Income taxes payable		124			123
Short-term borrowings		61			375
Advertising cooperative liabilities		0			201
Liabilities, Current		1,109			1,512
Long-term debt		9,419			9,429
Other liabilities and deferred credits		1,062			704
Liabilities		11,590			11,645
Retained earnings (Accumulated deficit)		6,539			6,063
Accumulated other comprehensive income (loss)		(215)			(271)
Stockholders' Equity Attributable to Parent		(6,754)			(6,334)
Total Liabilities and Shareholders’ Deficit		4,836			5,311
Unallocated and General and administrative expenses [Domain]
Costs associated with PH U.S. Acceleration Agreement					39
General and Administrative Expense [Member] | Unallocated [Member]
Costs Associated with strategic initiatives		1	7
Scenario, Previously Reported [Member]
Cash and cash equivalents					1,522
Accounts and notes receivable, net					400
Prepaid expenses and other current assets					384
Advertising cooperative assets, restricted					201
Assets, Current					2,507
Property, plant and equipment, net					1,697
Goodwill					512
Intangible assets, net					110
Other assets					346
Deferred income taxes					139
Assets					5,311
Accounts payable and other current liabilities					813
Income taxes payable					123
Short-term borrowings					375
Advertising cooperative liabilities					201
Liabilities, Current					1,512
Long-term debt					9,429
Other liabilities and deferred credits					704
Liabilities					11,645
Retained earnings (Accumulated deficit)					6,063
Accumulated other comprehensive income (loss)					(271)
Stockholders' Equity Attributable to Parent					(6,334)
Total Liabilities and Shareholders’ Deficit					$ 5,311
Balances with Adoption of Topic 606 [Domain]
Cash and cash equivalents						$ 1,533
Accounts and notes receivable, net						512
Prepaid expenses and other current assets						460
Advertising cooperative assets, restricted						0
Assets, Current						2,505
Property, plant and equipment, net						1,708
Goodwill						512
Intangible assets, net						110
Other assets						464
Deferred income taxes						165
Assets						5,464
Accounts payable and other current liabilities						1,033
Income taxes payable						123
Short-term borrowings						375
Advertising cooperative liabilities						0
Liabilities, Current						1,531
Long-term debt						9,429
Other liabilities and deferred credits						1,057
Liabilities						12,017
Retained earnings (Accumulated deficit)						6,303
Accumulated other comprehensive income (loss)						(250)
Stockholders' Equity Attributable to Parent						(6,553)
Total Liabilities and Shareholders’ Deficit						5,464
UNITED STATES | Other pension (income) expense [Member]
Pension data adjustment		0	$ 22	[1]
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Cash and cash equivalents		(20)				11
Total Revenues		(270)
Net Cash Provided by Operating Activities		(20)
Operating Profit	[2]	(4)
Net Income (Loss) Attributable to Parent		$ (3)
Diluted Earnings Per Common Share		$ (0.01)
Accounts and notes receivable, net		$ (109)				112
Prepaid expenses and other current assets		(71)				76	[3]
Investment Income, Net		0
Advertising cooperative assets, restricted		197				(201)
Assets, Current		(3)				(2)
Property, plant and equipment, net		(13)				11
Goodwill		0				0
Intangible assets, net		0				0
Other assets		(118)				118
Deferred income taxes		(24)				26
Assets		(158)				153
Accounts payable and other current liabilities		(235)				220
Income taxes payable		0				0
Short-term borrowings		0				0
Advertising cooperative liabilities		197				(201)
Liabilities, Current		(38)				19
Long-term debt		0				0
Other liabilities and deferred credits		(339)				353
Liabilities		(377)				372
Retained earnings (Accumulated deficit)		(242)				240
Accumulated other comprehensive income (loss)		(23)				21
Stockholders' Equity Attributable to Parent		219				(219)
Total Liabilities and Shareholders’ Deficit		(158)				153
Accounting Standards Update 2014-09 [Member]
Costs associated with KFC U.S. and PH U.S. Acceleration Agreement		$ 4
Deferred income taxes						26
Accumulated other comprehensive income (loss)						21
Up-front Payment Arrangement [Member] | Accounting Standards Update 2014-09 [Member]
Accounts payable and other current liabilities						57
Other liabilities and deferred credits						335
Retained earnings (Accumulated deficit)						392
Franchise Incentive [Member] | Accounting Standards Update 2014-09 [Member]
Prepaid expenses and other current assets						18
Other assets						118
Retained earnings (Accumulated deficit)						(136)
Advertising cooperative assets, restricted [Member] | Accounting Standards Update 2014-09 [Member]
Cash and cash equivalents						$ 11

[1] Reflects a non-cash, out-of-year charge related to the adjustment of certain historical deferred vested liability balances in the Plan during the first quarter of 2017 recorded in Other pension (income) expense. See Note 5.

[2] Includes $4 million of franchise incentive payments related to the KFC U.S. Acceleration Agreement and the Pizza Hut U.S. Transformation Agreement that would have been expensed immediately and that we would not have allocated to the KFC Division or the Pizza Hut Division under Legacy GAAP. Upon the adoption of Topic 606, these payments have been capitalized as assets.

[3] Includes $58 million of restricted cash related to advertising cooperatives. These balances can only be used to settle obligations of the respective cooperatives.