Financial Instruments (Fair Values Of Derivatives Instruments) (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value, Derivative Assets	$ 154	$ 20
Fair Value, Derivative Liabilities	176	52
Derivatives Designated As Hedging Instruments | Interest rate swaps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value, Derivative Assets	62	2
Fair Value, Derivative Liabilities	0	27
Derivatives Not Designated As Hedging Instruments | Foreign exchange contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value, Derivative Assets	38	7
Fair Value, Derivative Liabilities	12	10
Derivatives Not Designated As Hedging Instruments | Interest rate caps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value, Derivative Assets	54	11
Fair Value, Derivative Liabilities	$ 164	$ 15