Restructuring Costs And Other Charges (Tables)

6 Months Ended

Jun. 30, 2021

Restructuring Costs And Other Charges [Abstract]

Changes In Restructuring Reserve

($ in millions)
Balance at January 1, 2021 (Predecessor)	$	2
Severance expense		7
Cash payments during the period		(2)
Balance at April 30, 2021 (Predecessor)	$	7
Balance at April 30, 2021 (Successor)	$	7
Severance expense		2
Other costs		9
Cash payments during the period		(7)
Balance at June 30, 2021 (Successor)	$	11