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Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Balance sheet Information by Geographic Segment (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Balance sheet Information by Geographic Segment [Abstract]
Capital expenditure incurred	$ 795	$ 1,033

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- Definition

Capital expenditures increase (decrease), property, plant and equipment assets for the right of use

+ References

No definition available.

+ Details

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X

- Definition

Disclosure - Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Balance sheet Information by Geographic Segment [Abstract]

+ References

No definition available.

+ Details

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