Employee Benefits	12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]
Employee Benefits	17. Employee Benefits Defined Contribution Savings Plans Certain of the Company’s employees participate in a defined contribution savings plan sponsored by the Company. For the Successor six months ended December 31, 2021 and the Predecessor six months ended June 30, 2021 and years ended December 31, 2020 and 2019, expenses were $24 million, $31 million, $46 million and $49 million, respectively. Expenses were recognized in Cost of services, exclusive of depreciation and amortization and Selling, general and administrative expenses in the Consolidated Statements of Comprehensive Income (Loss).

The entire disclosure for defined contribution plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-URI http://asc.fasb.org/subtopic&trid=2235116

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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