Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Accounting Standards Update and Change in Accounting Principle

The following table discloses the impact of adopting the CECL standard on key balance sheet line items.

	Balance as of December 31, 2019		Transition Impact of Adoption of the CECL Standard		Balance as of January 1, 2020
	(Dollars in millions)
Mortgage loans held for sale	$	6,773	$	50	$	6,823
Allowance for loan losses	(9,016)		(1,722)		(10,738)
Other assets(1)	14,312		230		14,542
Deferred tax assets, net	11,910		303		12,213
Accumulated deficit (beginning retained earnings)	(118,776)		(1,139)		(119,915)

(1)Transition adjustment primarily represents the reclassification and recognition of freestanding credit enhancements not contractually attached to the loan.