Debt (Details) - Debt Issuance - USD ($) $ in Millions			12 Months Ended
	May 25, 2023	Jun. 08, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument
Net proceeds of issuance, after the deduction of the underwriting discount and expenses			$ 738	$ 0	$ 739
Senior Notes [Member] | 5.45% Senior notes due May 25, 2053 [Member]
Debt Instrument
Debt, principal amount	$ 750
Interest rate (percent)	5.45%		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%
Senior Notes [Member] | 3.05% Senior notes due June 8, 2051 [Member]
Debt Instrument
Debt, principal amount		$ 750
Interest rate (percent)		3.05%	3.05%	3.05%
Net proceeds of issuance, after the deduction of the underwriting discount and expenses		$ 739
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		0.15%