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Balance Sheet and Cash Flow Supplemental Information - Additional Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Supplemental non cash information:
Financing activities - Acquisition of noncontrolling interest	$ 0	$ 125
Capital expenditures acquired but not yet paid	$ 67	$ 75

X

- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
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X

- References

No definition available.

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- Definition

Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders.

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