Derivatives and Hedging Activities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative assets	$ 277	$ 63
Derivative asset and derivative liability netting	(11)	(26)
Total derivatives assets, net	266	37
Other Assets [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative assets	57	54
Other Assets [Member] \| Foreign Exchange Contract [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative assets	220	9
Other Assets [Member] \| Fair Value Hedging [Member] \| Interest Rate Contract [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative assets	0	0
Other Assets [Member] \| Net Investment Hedging [Member] \| Foreign Exchange Contract [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative assets	57	54
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative liabilities	16	95
Derivative asset and derivative liability netting	(11)	(26)
Total derivatives liabilities, net	5	69
Other Liabilities [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative liabilities	10	38
Other Liabilities [Member] \| Foreign Exchange Contract [Member] \| Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative liabilities	6	57
Other Liabilities [Member] \| Fair Value Hedging [Member] \| Interest Rate Contract [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative liabilities	0	0
Other Liabilities [Member] \| Net Investment Hedging [Member] \| Foreign Exchange Contract [Member] \| Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Total fair value of derivative liabilities	$ 10	$ 38

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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