Income Taxes (Details 3) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, January 1	$ 790	$ 726	$ 701
Increases:
Current year tax positions	64	57	66
Tax positions related to prior years	225	105	78
Effects of foreign currency translations	0	0	10
Decreases:
Tax positions related to prior years	(14)	(24)	(14)
Settlements with tax authorities	(15)	(15)	(40)
Lapse of statute of limitations	(17)	(58)	(75)
Effects of foreign currency translations	(9)	(1)	0
Balance, December 31	$ 1,024	$ 790	$ 726

Decrease in unrecognized tax benefits excluding amounts pertaining to examined tax returns.

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Increase in unrecognized tax benefits excluding amounts pertaining to examined tax returns.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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Amount of unrecognized tax benefits.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from foreign currency translation.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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