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BUSINESS SEGMENTS - Depreciation and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Depreciation, amortization, and other	$ 220	$ 346	$ 341
Total segment | U.S. & Canada
Segment Reporting Information [Line Items]
Depreciation, amortization, and other	92	209	218
Total segment | International
Segment Reporting Information [Line Items]
Depreciation, amortization, and other	106	113	96
Unallocated corporate and other
Segment Reporting Information [Line Items]
Depreciation, amortization, and other	$ 22	$ 24	$ 27

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- Definition

Depreciation, Amortization and Other, Excluding Capitalized Contract Cost Amortization

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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- Details

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- Details

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