Derivatives - Currency Effects (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2019
Year-on-year foreign currency transaction effects, including hedging impact, gain (loss) impact on pre-tax income	$ 55	$ 121

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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-Publisher FASB
-Name Accounting Standards Codification
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