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Employee Benefits - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
U.K. |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Non-cash settlement charge | $ 0 |  | $ 0 | $ 0 | $ 0
Expected future employer cash contribution | 7 |  |  | 7 |
Other |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Non-cash settlement charge | 0 |  | 0 | 0 | 0
Expected future employer cash contribution | 15 |  |  | 15 |
U.S. |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Non-cash settlement charge | 0 | $ 1 | $ 0 | 1 | $ 0
Expected future employer cash contribution | $ 52 |  |  | $ 52 |

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- Definition Amount of contribution expected to be received by defined benefit plan from employer in remainder of current fiscal year. Excludes contribution previously paid by employer in current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details
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