Fair Value of Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	$ 0	$ 0
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits held in money market mutual funds	12		$ 16
Foreign exchange contracts	0		0
Interest rate swap agreements	0
Total	12		16
Foreign exchange contracts	0		0
Total	0		0
Fair Value, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreements			0
Fair Value, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits held in money market mutual funds	0		0
Foreign exchange contracts	1		1
Interest rate swap agreements	44
Total	45		64
Foreign exchange contracts	1		2
Total	1		2
Fair Value, Recurring | Significant Other Observable Inputs (Level 2) | Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreements			63
Fair Value, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits held in money market mutual funds	0		0
Foreign exchange contracts	0		0
Interest rate swap agreements	0
Total	0		0
Foreign exchange contracts	0		0
Total	0		0
Fair Value, Recurring | Significant Unobservable Inputs (Level 3) | Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreements			0
Fair Value, Recurring | Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deposits held in money market mutual funds	12		16
Foreign exchange contracts	1		1
Interest rate swap agreements	44
Total	57		80
Foreign exchange contracts	1		2
Total	$ 1		2
Fair Value, Recurring | Total | Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreements			$ 63