Description of Business and Significant Accounting Policies - (Tables)

3 Months Ended

Mar. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Contract with Customer, Contract Asset, Contract Liability, and Receivable

The change in the balance of the Recovery Credit unsatisfied performance obligation was as follows:

	Three Months Ended March 31,
(in millions)	2021
Balance at beginning of period	$	92
(+) Accruals	12
(-) Distributions to clients	(27)
Balance at end of period	$	77