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Fair Value Measurements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Carrying value
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total debt	$ 20,400	$ 19,900
Level 2 | Fair Value
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total debt	21,800	22,500
Fair Value, Inputs, Level 3
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Contingent liability	4	8
Lending Solutions Business
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Other (expense) income	12	13	$ 7
Financial Guarantee | Lending Solutions Business
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Contingent debt guarantee	$ 10	$ 18

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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- Definition

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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