Stock Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Target Performance Shares	2021 Incentive Plan Weighted Average Number of Grant Date Aggregate Shares Fair Value Fair Value (in thousands) (per share) (in millions) Balance at April 30, 2021 (Successor) - $ - $ - Target performance shares awarded, net 3,157  $25.62 $ 92  Target performance shares earned - $ - $ - Target performance shares forfeited (13) $25.61 Balance at December 31, 2021 (Successor) 3,144  $25.62 $ 92
LTIP Target Performance Shares	Number of  Shares (in thousands) Balance at December 31, 2018 (Predecessor)497 LTIP target performance shares granted - LTIP target performance shares earned(381) LTIP target performance shares forfeited(20) Balance at December 31, 2019 (Predecessor)96 LTIP target performance shares/units granted - LTIP target performance shares/units earned - LTIP target performance shares/units forfeited(96) Balance at December 31, 2020 (Predecessor) -
2021 Incentive Plan [Member]
Restricted Shares Outstanding	Weighted Average Number of Grant Date Aggregate Shares Fair Value Fair Value (in thousands) (per share) (in millions) Balance at April 30, 2021 (Successor) - $ - $ - Restricted stock granted 2,578  $28.66 $ 75  Restricted stock vested (21) $28.44 $ - Restricted stock forfeited (74) $28.52 Balance at December 31, 2021 (Successor) 2,483  $28.67 $ 72
2017 EIP [Member]
Restricted Shares Outstanding	Weighted Average Number of Grant Date Aggregate Shares Fair Value Fair Value (in thousands) (per share) (in millions) Balance at December 31, 2018 (Predecessor)1,858 $16.02 $4 Restricted stock granted 105 $2.00 $ - Restricted stock vested(1,039) $19.05 $(1) Restricted stock forfeited(24) $28.30 Balance at December 31, 2019 (Predecessor)900 $10.57 $1 Restricted stock granted - $0.00 $ - Restricted stock vested(387) $15.04 $ - Restricted stock forfeited(209) $7.79 Balance at December 31, 2020 (Predecessor)304 $6.78 $ - Restricted stock granted - $ - $ - Restricted stock vested(41) $8.23 $ - Restricted stock forfeited(109) $8.23 Balance at April 30, 2021 (Predecessor)154 $5.38 $ - Cancellation of restricted stock(154) $ - $ - Balance at April 30, 2021 (Predecessor) - $ - $ -