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Summary of Significant Accounting Standards and Policies - Goodwill (Details) - USD ($) $ in Millions		9 Months Ended
	Jul. 01, 2019	Sep. 30, 2019	Dec. 31, 2018
Carrying value of goodwill
Goodwill before impairment charges			$ 946
Accumulated impairment charges			(155)
Balance at the beginning of the period		$ 791
Acquisitions		7
Currency translation		(3)
Balance at the end of the period		795
Indefinite-lived intangible assets		178	178
Goodwill impairment	$ 0
Indefinite-lived intangible assets impairment	$ 0
North America
Carrying value of goodwill
Goodwill before impairment charges			601
Accumulated impairment charges			(1)
Balance at the beginning of the period		600
Acquisitions		7
Balance at the end of the period		607
South America
Carrying value of goodwill
Goodwill before impairment charges			55
Accumulated impairment charges			(33)
Balance at the beginning of the period		22
Currency translation		(2)
Balance at the end of the period		20
Asia-Pacific
Carrying value of goodwill
Goodwill before impairment charges			225
Accumulated impairment charges			(121)
Balance at the beginning of the period		104
Currency translation		2
Balance at the end of the period		106
EMEA
Carrying value of goodwill
Goodwill before impairment charges			$ 65
Balance at the beginning of the period		65
Currency translation		(3)
Balance at the end of the period		$ 62

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