Derivative Instruments and Hedging Activities - Part 2 (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Liabilities
Derivative Liabilities, Gross	$ 949	$ 424
Derivative Liabilities, Net	32
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	180	171
Other Current Assets [Member]
Derivatives Fair Value Table [Line Items]
Derivative Asset, Current	125	72
Other Current Liabilities [Member]
Derivatives Fair Value Table [Line Items]
Derivative Liability, Current	478	126
Other Noncurrent Assets [Member]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Asset, Noncurrent	55	99
Other Noncurrent Liabilities [Member]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Liability, Noncurrent	471	298
Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	850	368
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	26	62
Not Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	99	56
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	154	109
Interest Rate Contract [Member]
Liabilities
Derivative Liabilities, Gross	793	328
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	0	31
Interest Rate Contract [Member] \| Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	783	323
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	0	31
Interest Rate Contract [Member] \| Not Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	10	5
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	0	0
Cross currency derivatives [Member]
Liabilities
Derivative Liabilities, Gross	45	21
Cross currency derivatives [Member] \| Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	45	21
Cross currency derivatives [Member] \| Not Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	0	0
Foreign Exchange Contract [Member]
Liabilities
Derivative Liabilities, Gross	46	44
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	96	110
Foreign Exchange Contract [Member] \| Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	22	22
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	26	31
Foreign Exchange Contract [Member] \| Not Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	24	22
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	70	79
Commodity Contract [Member]
Liabilities
Derivative Liabilities, Gross	65	31
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	84	30
Commodity Contract [Member] \| Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	0	2
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	0	0
Commodity Contract [Member] \| Not Designated as Hedging Instruments [Member]
Liabilities
Derivative Liabilities, Gross	65	29
Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]
Derivative Assets, Gross	$ 84	$ 30

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