Allowance for Credit Losses (Tables)

12 Months Ended

Dec. 31, 2016

Allowance for Credit Losses [Abstract]

Activity in the Allowance for Credit Losses

The allowance for credit losses consists of the ALLL and the unfunded commitments reserve. Activity in the allowance for credit losses is summarized in the following table:

	Year Ended December 31
(Dollars in millions)	2016			2015			2014
Balance, beginning of period		$1,815			$1,991			$2,094
Provision for loan losses	440			156			338
Provision for unfunded commitments	4			9			4
Loan charge-offs	(591		)	(470		)	(607		)
Loan recoveries	108			129			162
Balance, end of period		$1,776			$1,815			$1,991
Components:
ALLL		$1,709			$1,752			$1,937
Unfunded commitments reserve 1	67			63			54
Allowance for credit losses		$1,776			$1,815			$1,991

¹ The unfunded commitments reserve is recorded in other liabilities in the Consolidated Balance Sheets.

Activity in the ALLL by Segment

Activity in the ALLL by loan segment is presented in the following tables:

	Year Ended December 31, 2016
(Dollars in millions)	Commercial			Residential			Consumer			Total
Balance, beginning of period		$1,047			$534			$171			$1,752
Provision/(benefit) for loan losses	329			(59		)	170			440
Loan charge-offs	(287		)	(136		)	(168		)	(591		)
Loan recoveries	35			30			43			108
Balance, end of period		$1,124			$369			$216			$1,709
	Year Ended December 31, 2015
(Dollars in millions)	Commercial			Residential			Consumer			Total
Balance, beginning of period		$986			$777			$174			$1,937
Provision/(benefit) for loan losses	133			(67		)	90			156
Loan charge-offs	(117		)	(218		)	(135		)	(470		)
Loan recoveries	45			42			42			129
Balance, end of period		$1,047			$534			$171			$1,752

Loans Held for Investment portfolio and Related Allowance for Loan and Lease Losses

The Company’s LHFI portfolio and related ALLL is presented in the following tables:

	December 31, 2016
	Commercial				Residential				Consumer				Total
(Dollars in millions)	Carrying Value		ALLL		Carrying Value		ALLL		Carrying Value		ALLL		Carrying Value		ALLL
Individually evaluated		$382		$33		$2,518		$215		$168		$7		$3,068		$255
Collectively evaluated	77,842		1,091		36,250		154		25,916		209		140,008		1,454
Total evaluated	78,224		1,124		38,768		369		26,084		216		143,076		1,709
LHFI at fair value	—		—		222		—		—		—		222		—
Total LHFI		$78,224		$1,124		$38,990		$369		$26,084		$216		$143,298		$1,709

	December 31, 2015
	Commercial				Residential				Consumer				Total
(Dollars in millions)	Carrying Value		ALLL		Carrying Value		ALLL		Carrying Value		ALLL		Carrying Value		ALLL
Individually evaluated		$218		$28		$2,527		$252		$131		$7		$2,876		$287
Collectively evaluated	75,034		1,019		36,144		282		22,131		164		133,309		1,465
Total evaluated	75,252		1,047		38,671		534		22,262		171		136,185		1,752
LHFI at fair value	—		—		257		—		—		—		257		—
Total LHFI		$75,252		$1,047		$38,928		$534		$22,262		$171		$136,442		$1,752