Leases - Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Balances for operating and finance ROU assets and lease liabilities
Operating lease assets	$ 259	$ 268
Operating lease assets Balance Sheet Classification	Other assets	Other assets
Finance lease assets	$ 18	$ 28
Finance lease assets Balance Sheet Classification	Other assets	Other assets
Total lease assets	$ 277	$ 296
Operating lease liabilities	$ 325	$ 317
Operating lease liabilities Balance Sheet Classification	Other liabilities	Other liabilities
Finance lease liabilities	$ 20	$ 30
Finance lease liabilities Balance Sheet Classification	Long-term debt	Long-term debt
Total lease liabilities	$ 345	$ 347