Goodwill and Other Intangible Assets Schedule of Acquired Assets and Assumed Liabilities (Details) - USD ($) $ in Millions	Jul. 01, 2017	Dec. 31, 2016	[1]	Dec. 01, 2016
Business Acquisition [Line Items]
Goodwill	$ 5,127	$ 5,166
Ritmo Investimentos
Business Acquisition [Line Items]
Current Assets				$ 46
Property				72
Goodwill				177
Intangible Assets				147
Current liabilities				(48)
Non-current deferred tax liability and other				(19)
Total acquired assets and assumed liabilities, net				$ 375

[1] Condensed from audited financial statements.