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Supplementary Information Foreign Currency Exchange Gain (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |  |
Pre-tax exchange (losses) gains - net | [1] | $ (67) | $ (11) | $ (127) | $ (70)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit |  | 18 | (12) | 3 | 0
Foreign Currency Transaction (Loss) Gain After Tax |  | (49) | (23) | (124) | (70)
Subsidiary Monetary Position |  |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |  |
Pre-tax exchange (losses) gains - net | [1] | (61) | (66) | (300) | (59)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit |  | 16 | 1 | 44 | (2)
Foreign Currency Transaction (Loss) Gain After Tax |  | (45) | (65) | (256) | (61)
Hedging Program [Member] |  |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |  |
Pre-tax exchange (losses) gains - net |  | (6) | 55 | 173 | (11)
Foreign Currency Transaction (Loss) Gain Tax (Expense) Benefit |  | 2 | (13) | (41) | 2
Foreign Currency Transaction (Loss) Gain After Tax |  | (4) | 42 | 132 | (9)
Hedging Program [Member] | Argentine Peso Devaluation [Member] |  |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |  |
Pre-tax exchange (losses) gains - net |  | $ (26) | $ (33) | $ (56) | (42)
Hedging Program [Member] | Argentine Peso Devaluation [Member] | Corporate |  |  |  |  |
Foreign Currency Exchange Gain (Loss) [Line Items] |  |  |  |  |
Pre-tax exchange (losses) gains - net |  |  |  |  | $ 33
[1] | Includes net pre-tax exchange losses of $(26) million and $(56) million for the three and nine months ended September 30, 2020, respectively, and $(33) million and $(42) million for the three and nine months ended September 30, 2019, respectively, associated with the devaluation of the Argentine peso.

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- Definition Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109240200&loc=d3e30700-110894 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109240200&loc=d3e30690-110894 + Details
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