Segment Reporting (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Equity income from investments in unconsolidated affiliates	$ 17	$ 20
KFC [Member]
Segment Reporting Information [Line Items]
Equity income from investments in unconsolidated affiliates	$ 19	$ 20

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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