Acquisitions and Divestitures - Assets Held For Sale (Details) - USD ($) $ in Millions		6 Months Ended
	Mar. 01, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets		$ 5	$ 5
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Inventories		3		$ 33
Other current assets		0		5
Long-lived assets		1		23
Total assets held for sale		4		61
Accounts payable		2		21
Accrued liabilities		0		7
Other liabilities		1		11
Total liabilities held for sale		$ 3		$ 39
Motorsports Certain Assets and Liabilities | Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale price	$ 29
Proceeds from sale of assets	$ 22