Fair Value of Financial Assets and Liabilities - Recurring (Details) - Recurring - Level 2 - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Assets
Deferred compensation investments in mutual funds	$ 18	$ 16
Total	27	31
Liabilities
Deferred compensation plan liabilities	17	16
Total	23	20
Foreign exchange contracts - forwards
Assets
Foreign currency contracts - assets	7	14
Liabilities
Foreign currency contracts - liabilities	6	1
Foreign currency options
Assets
Foreign currency contracts - assets	0	1
Interest rate swaps
Assets
Interest rate swaps	2	0
Liabilities
Interest rate swaps	$ 0	$ 3

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

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Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Fair value of financial and nonfinancial obligations.

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Fair value portion of liability related to investment contracts for example, but not limited to, guaranteed investment contract or annuities.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 825
-Section 25
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6487514&loc=d3e32427-158581

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