Debt (Details) - USD ($) $ in Millions		9 Months Ended
	May 25, 2023	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument
Net proceeds of issuance, after the deduction of the underwriting discount and expenses		$ 738	$ 0
Senior Notes [Member] | 5.45% Senior notes due May 25, 2053 [Member]
Debt Instrument
Debt, principal amount	$ 750
Interest rate (percent)	5.45%
Net proceeds of issuance, after the deduction of the underwriting discount and expenses	$ 738
Percentage of principal amount at which redemption price may be set	100.00%
Basis points added to current Treasury rate used in calculation of alternative redemption price	0.25%