Goodwil And Intangibles (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwil And Intangibles [Abstract]
Schedule Of Intangible Assets	The balances of these assets as of December 31, 2021 are as follows: Successor December 31, 2021 Gross Carrying Accumulated Net Carrying ($ in millions) Amount Amortization Amount      Intangibles: Customer Relationships - Business $ 800  $ (48) $ 752  Customer Relationships - Wholesale 3,491  (146) 3,345  Trademarks & Tradenames 150  (20) 130  Total intangibles $ 4,441  $ (214) $ 4,227  The components of other intangibles at December 31, 2020 were as follows: Predecessor December 31, 2020 Gross Carrying Accumulated Net Carrying ($ in millions) Amount Amortization Amount Intangibles: Customer base $4,332 $(3,781) $551 Trade name 122 - 122 Royalty agreement 72 (68) 4 Total intangibles $4,526 $(3,849) $677
Schedule Of Amortization Expense	Successor Predecessor For the eight months For the four months For the year ended For the year ended ended December 31, ended April 30, December 31, December 31, ($ in millions) 2021 2021 2020 2019 Amortization expense $214 $99 $343 $445