Fair Value of Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	$ 0	$ 0	$ 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	9		9		$ 16
Foreign exchange contracts	0		0		0
Interest rate swap agreements	0		0
Total	9		9		16
Interest rate swap agreements	0		0
Foreign exchange contracts	0		0		0
Total	0		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		0
Foreign exchange contracts	1		1		1
Interest rate swap agreements	22		22
Total	23		23		64
Interest rate swap agreements	8		8
Foreign exchange contracts	3		3		2
Total	11		11		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		0
Foreign exchange contracts	0		0		0
Interest rate swap agreements	0		0
Total	0		0		0
Interest rate swap agreements	0		0
Foreign exchange contracts	0		0		0
Total	0		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	9		9		16
Foreign exchange contracts	1		1		1
Interest rate swap agreements	22		22
Total	32		32		80
Interest rate swap agreements	8		8
Foreign exchange contracts	3		3		2
Total	$ 11		$ 11		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