Leases (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Leases [Abstract]
Operating leases	$ 19	$ 21	$ 38	$ 42
Short-term leases	0	1	1	1
Lease expense	19	22	39	43
Less: sublease income	0	0	0	0
Net lease cost	19	22	39	43
Cash payments to settle a lease liability reported in cash flows	22	24	43	48
Right-of-use assets obtained in exchange for new lease liabilities	$ 3	$ 5	$ 13	$ 7
Weighted average discount rate (percent)	2.52%	2.27%	2.52%	2.27%
Weighted average remaining lease term (in years)	4 years 3 months 18 days	4 years 7 months 6 days	4 years 3 months 18 days	4 years 7 months 6 days