Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Other intangible assets:
Estimated Fair Value	$ 192	$ 192
Accumulated Amortization	44	32
Net Carrying Amount	148	160
Customer relationships
Other intangible assets:
Estimated Fair Value	135	135
Accumulated Amortization	23	16
Net Carrying Amount	112	119
Other
Other intangible assets:
Estimated Fair Value	57	57
Accumulated Amortization	21	16
Net Carrying Amount	$ 36	$ 41