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Schedule II - Valuation and Qualifying Accounts and Reserves
12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts and Reserves
SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
(IN MILLIONS)
 
 For the Year Ended December 31, 2021
 Balance at
beginning
of period
Additions (deductions) charged to costs and expenses AcquisitionsAccounts
written off
Translation
adjustments
Other(1)
Balance at end of period
Allowance for doubtful accounts$21 $$— $(1)$— $20 $46 
Valuation allowance on credit and operating loss carryforwards and other net deferred tax assets257 (18)— (16)— 232 
 For the Year Ended December 31, 2020
 Balance at
beginning
of period
Additions charged to costs and expenses AcquisitionsAccounts
written off
Translation
adjustments
OtherBalance at
end of
period
Allowance for doubtful accounts$16 $$— $(1)$— $— $21 
Valuation allowance on credit and operating loss carryforwards and other net deferred tax assets204 35 — — 18 — 257 
 For the Year Ended December 31, 2019
 Balance at
beginning
of period
Additions charged to costs and expenses AcquisitionsAccounts
written off
Translation
adjustments
Other(2)
Balance at
end of
period
Allowance for doubtful accounts$$$— $(2)$— $$16 
Valuation allowance on credit and operating loss carryforwards and other net deferred tax assets200 — — (2)— 204 
_______________________ 
(1)The amount relates to adjustment to allowances for bad debts as a result of purchase price allocation related to the Merger with N&B.
(2)The amount relates to an adjustment to reflect the correct classification of amounts between the allowance for bad debts and Trade Receivables.