Debt - Narrative (Details) R in Millions			1 Months Ended						3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Apr. 04, 2022 USD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2022 ZAR (R)	Aug. 31, 2022 USD ($)	Jul. 31, 2022 USD ($)	Jul. 31, 2022 ZAR (R)	Apr. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Apr. 01, 2021 USD ($)
Line of Credit Facility [Line Items]
Loss on extinguishment of debt									$ 0	$ 3,000,000	$ 21,000,000	$ 60,000,000
Insurance premium											21,000,000	$ 0
Short-term debt	$ 84,000,000								84,000,000		84,000,000		$ 0
Insurance Premium Financing Agreement
Line of Credit Facility [Line Items]
Interest rate					5.00%
Insurance premium					$ 21,000,000
Monthly installments due					10 months
Short-term debt	17,000,000								17,000,000		17,000,000
Term Loan Facility
Line of Credit Facility [Line Items]
Original principal	$ 1,300,000,000								1,300,000,000		1,300,000,000
Debt instrument, term												7 years
Term Loan Facility | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.25%
Cash Flow Revolver
Line of Credit Facility [Line Items]
Proceeds from issuance of debt								$ 85,000,000
Repayments of debt											20,000,000
Long-term debt	$ 65,000,000								65,000,000		65,000,000
Senior Notes due 2029
Line of Credit Facility [Line Items]
Original principal	$ 1,075,000,000								$ 1,075,000,000	$ 1,075,000,000	$ 1,075,000,000	$ 1,075,000,000
Interest rate	4.625%								4.625%	4.625%	4.625%	4.625%
Senior Notes due 2026
Line of Credit Facility [Line Items]
Loss on extinguishment of debt												$ 30,000,000
Original principal										$ 615,000,000		615,000,000
Amortization of debt premium												21,000,000
Senior Notes due 2025
Line of Credit Facility [Line Items]
Loss on extinguishment of debt												22,000,000
Original principal														$ 450,000,000
Amortization of debt premium												19,000,000
2022 Term Loan Facility
Line of Credit Facility [Line Items]
Loss on extinguishment of debt											$ 21,000,000
Original principal	$ 400,000,000	$ 400,000,000							$ 400,000,000		400,000,000
Amortization of debt premium											18,000,000
Debt instrument, term		7 years
Interest rate floor		0.50%
2022 Term Loan Facility | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.25%	2.25%
2022 Term Loan Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate		3.25%
6.5% Senior Secured Notes due 2025 | Senior Notes
Line of Credit Facility [Line Items]
Original principal	$ 500,000,000								$ 500,000,000		$ 500,000,000
Interest rate	6.50%								6.50%		6.50%
Revolving Credit Facility | Standard Bank Revolver
Line of Credit Facility [Line Items]
Proceeds from issuance of debt						$ 22,000,000	R 400
Revolving Credit Facility | Standard Bank Revolver | Subsequent Event
Line of Credit Facility [Line Items]
Proceeds from issuance of debt			$ 15,000,000	R 280
Revolving Credit Facility | Term Loan Facility
Line of Credit Facility [Line Items]
Loss on extinguishment of debt										3,000,000		4,000,000
Repayment of debt										$ 135,000,000		$ 196,000,000
Revolving Credit Facility | Cash Flow Revolver
Line of Credit Facility [Line Items]
Debt instrument, term												5 years