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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2018

Retirement Benefits [Abstract]

Weighted Average Assumptions Used in Calculating the Net Periodic Benefit Cost for Pension Plans and Other Postretirement Plans

Weighted Average Assumptions Used in Calculating the Benefit Obligations and the Net Amount Recognized

	Pension Benefits				Other Postretirement Benefits
	For the years ended December 31,
	2018		2017		2018		2017
Discount rate	4.35	%	3.73	%	4.23	%	3.55	%

Weighted Average Assumptions Used in Calculating the Net Periodic Benefit Cost for Pension Plans

	For the years ended December 31,
	2018		2017		2016
Discount rate	3.73	%	4.22	%	4.25	%
Expected long-term rate of return on plan assets	6.60	%	6.60	%	6.70	%

Weighted Average Assumptions Used in Calculating the Net Periodic Benefit Cost for Other Postretirement Plans

	For the years ended December 31,
	2018		2017		2016
Discount rate	3.55	%	3.97	%	4.00	%
Expected long-term rate of return on plan assets	6.60	%	6.60	%	6.60	%

Assumed Health Care Cost Trend Rates

Assumed Health Care Cost Trend Rates

	For the years ended December 31,
	2018		2017		2016
Pre-65 health care cost trend rate	6.50	%	6.75	%	6.90	%
Post-65 health care cost trend rate	N/A		N/A		N/A
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	4.50	%	4.50	%	5.00	%
Year that the rate reaches the ultimate trend rate	2028		2028		2024

Change in Benefit Obligation

Change in Benefit Obligation

	Pension Benefits						Other Postretirement Benefits
	For the years ended December 31,
	2018			2017			2018			2017
Benefit obligation — beginning of year	$	4,376		$	5,650		$	256		$	272
Service cost	4			4			—			—
Interest cost	142			170			7			8
Plan participants’ contributions	—			—			11			11
Actuarial (gain) loss	(6		)	139			—			5
Settlements	—			(1,647		)	—			—
Changes in assumptions	(329		)	332			(11		)	10
Benefits and expenses paid	(186		)	(273		)	(45		)	(51		)
Retiree drug subsidy	—			—			2			1
Foreign exchange adjustment	(1		)	1			—			—
Benefit obligation — end of year	$	4,000		$	4,376		$	220		$	256

Change in Plan Assets

Change in Plan Assets

	Pension Benefits						Other Postretirement Benefits
	For the years ended December 31,
	2018			2017			2018			2017
Fair value of plan assets — beginning of year	$	3,592		$	4,678		$	114		$	138
Actual return on plan assets	(172		)	549			(2		)	11
Employer contributions	103			280			—			—
Benefits paid [1]	(161		)	(248		)	(27		)	(35		)
Expenses paid	(17		)	(21		)	—			—
Settlements	—			(1,647		)	—			—
Foreign exchange adjustment	(1		)	1			—			—
Fair value of plan assets — end of year	$	3,344		$	3,592		$	85		$	114
Funded status — end of year	$	(656	)	$	(784	)	$	(135	)	$	(142	)

[1]

Other postretirement benefits paid represent non-key employee postretirement medical benefits paid from the Company's prefunded trust fund.

Defined Benefit Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets

Defined Benefit Pension Plans with an Accumulated Benefit Obligation in Excess of Plan Assets

	As of December 31,
	2018			2017
Projected benefit obligation	$	4,000		$	4,376
Accumulated benefit obligation	$	4,000		$	4,376
Fair value of plan assets	$	3,344		$	3,592

Amounts Recognized in Consolidated Balance Sheets

Amounts Recognized in the Consolidated Balance Sheets

	Pension Benefits						Other Postretirement Benefits
	As of December 31,
	2018			2017			2018			2017
Other liabilities	$	656		$	784		$	135		$	142

Net Periodic Cost (Benefit)

Net Periodic Cost (Benefit)

	Pension Benefits									Other Postretirement Benefits
	For the years ended December 31,
	2018			2017			2016			2018			2017			2016
Service cost	$	4		$	4		$	2		$	—		$	—		$	—
Interest cost	142			170			237			7			8			11
Expected return on plan assets	(227		)	(267		)	(311		)	(7		)	(8		)	(10		)
Amortization of prior service credit	—			—			—			(7		)	(7		)	(6		)
Amortization of actuarial loss	49			56			56			6			5			5
Settlements	—			750			—			—			—			—
Net periodic cost (benefit)	$	(32	)	$	713		$	(16	)	$	(1	)	$	(2	)	$	—

Amounts Recognized in Other Comprehensive Income (Loss)

Amounts Recognized in Other Comprehensive Income (Loss)

	Pension Benefits									Other Postretirement Benefits
	For the years ended December 31,
	2018			2017			2016			2018			2017			2016
Amortization of actuarial loss	$	49		$	56		$	56		$	6		$	5		$	5
Settlement loss	—			750			—			—			—			—
Amortization of prior service credit	—			—			—			(6		)	(7		)	(6		)
Net loss arising during the year	(91		)	(209		)	(66		)	3			(12		)	(4		)
Total	$	(42	)	$	597		$	(10	)	$	3		$	(14	)	$	(5	)

Amounts in Accumulated Other Comprehensive Income (Loss), Before Tax, not yet Recognized as Components of Net Periodic Benefit Cost

Amounts in Accumulated Other Comprehensive Income (Loss), Before Tax, not yet Recognized as Components of Net Periodic Benefit Cost

	Pension Benefits									Other Postretirement Benefits
	As of December 31,
	2018			2017			2016			2018			2017			2016
Net loss	$	(2,008	)	$	(1,966	)	$	(2,563	)	$	(120	)	$	(129	)	$	(122	)
Prior service credit	—			—			—			72			78			85
Total	$	(2,008	)	$	(1,966	)	$	(2,563	)	$	(48	)	$	(51	)	$	(37	)

Plan Assets

Target Asset Allocation

	Pension Plans				Other Postretirement Plans
	Minimum		Maximum		Minimum		Maximum
Equity securities	5	%	35	%	15	%	45	%
Fixed income securities	50	%	70	%	55	%	85	%
Alternative assets	—	%	45	%	—	%	—	%

Other Postretirement Plan Assets at Fair Value as of December 31, 2018
Asset Category	Level 1			Level 2			Level 3			Total
Short-term investments	$	4		$	—		$	—		$	4
Fixed Income Securities:
Corporate	—			19			—			19
RMBS	—			15			—			15
U.S. Treasuries	6			13			—			19
Foreign government	—			1			—			1
CMBS	—			2			—			2
Other fixed income	—			2			—			2
Equity Securities:
Large-cap	23			—			—			23
Total other postretirement plan assets at fair value [1]	$	33		$	52		$	—		$	85

[1] Excludes approximately $1 of investment receivables net of investment payables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value.

Other Postretirement Plan Assets at Fair Value as of December 31, 2017
Asset Category	Level 1			Level 2			Level 3			Total
Short-term investments	$	4		$	—		$	—		$	4
Fixed Income Securities:
Corporate	—			25			—			25
RMBS	—			17			—			17
U.S. Treasuries	1			25			—			26
Foreign government	—			1			—			1
CMBS	—			5			—			5
Other fixed income	—			4			1			5
Equity Securities:
Large-cap	30			—			—			30
Total other postretirement plan assets at fair value [1]	$	35		$	77		$	1		$	113

[1]

Excludes approximately $0 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value. Also excludes approximately $1 of interest receivable.Pension Plan Assets at Fair Value as of December 31, 2018

Asset Category	Level 1			Level 2			Level 3			Total
Short-term investments:	$	50		$	60		$	—		$	110
Fixed Income Securities:
Corporate	—			1,663			14			1,677
RMBS	—			62			1			63
U.S. Treasuries	10			120			—			130
Foreign government	—			15			2			17
CMBS	—			22			—			22
Other fixed income [1]	—			52			1			53
Mortgage Loans	—			—			133			133
Equity Securities:
Domestic	376			3			—			379
International	303			—			—			303
Total pension plan assets at fair value, in the fair value hierarchy [2]	$	739		$	1,997		$	151		$	2,887
Other Investments, at net asset value [3]:
Private Market Alternatives										272
Hedge funds										186
Total pension plan assets at fair value.	$	739		$	1,997		$	151		$	3,345

[1] Includes ABS, municipal bonds, and CDOs.

[2] Excludes approximately $1 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value.

[3] Investments that are measured at net asset value per share or an equivalent and have not been classified in the fair value hierarchy.

Pension Plan Assets at Fair Value as of December 31, 2017

Asset Category	Level 1			Level 2			Level 3			Total
Short-term investments:	$	21		$	168		$	—		$	189
Fixed Income Securities:
Corporate	—			1,549			14			1,563
RMBS	—			28			2			30
U.S. Treasuries	3			74			—			77
Foreign government	—			16			1			17
CMBS	—			28			2			30
Other fixed income [1]	—			97			2			99
Mortgage Loans	—			—			140			140
Equity Securities:
Large-cap domestic	595			89			—			684
Mid-cap domestic	11			—			—			11
International	343			—			—			343
Total pension plan assets at fair value, in the fair value hierarchy [2]	$	973		$	2,049		$	161		$	3,183
Other Investments, at net asset value [3]:
Private Market Alternatives										168
Hedge funds										212
Total pension plan assets at fair value.	$	973		$	2,049		$	161		$	3,563

[1] Includes ABS, municipal bonds, and CDOs.

[2] Excludes approximately $1 of investment payables net of investment receivables that are excluded from this disclosure requirement because they are trade receivables in the ordinary course of business where the carrying amount approximates fair value. Also excludes approximately $30 of interest receivable.

[3]

Investments that are measured at net asset value per share or an equivalent and have not been classified in the fair value hierarchy.

Pension Plan Assets Fair Value Measurements Using Significant Unobservable Inputs

2018 Pension Plan Asset Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Assets	Corporate			RMBS			Foreign government			Mortgage loans			Other [1]			Totals
Fair Value as of January 1, 2018	$	14		$	2		$	1		$	140		$	4		$	161
Realized gains,net	—			—			—			—			—			—
Changes in unrealized gains (losses), net	(1		)	—			—			(1		)	—			(2		)
Purchases	5			—			1			—			—			6
Settlements	—			—			—			—			—			—
Sales	(4		)	(1		)	—			(6		)	(3		)	(14		)
Transfers into Level 3	—			—			—			—			—			—
Transfers out of Level 3	—			—			—			—			—			—
Fair Value as of December 31, 2018	$	14		$	1		$	2		$	133		$	1		$	151

[1]

"Other" includes U.S. Treasuries, Other fixed income and CMBS investments.

2017 Pension Plan Asset Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Assets	Corporate			RMBS			Foreign government			Mortgage loans			Other [1]			Totals
Fair Value as of January 1, 2017	$	13		$	10		$	1		$	121		$	22		$	167
Realized gains,net	—			—			—			—			2			2
Changes in unrealized gains, net	2			—			—			2			2			6
Purchases	11			1			—			17			7			36
Settlements	—			(5		)	—			—			(1		)	(6		)
Sales	(12		)	(4		)	—			—			(19		)	(35		)
Transfers into Level 3	—			—			—			—			2			2
Transfers out of Level 3	—			—			—			—			(11		)	(11		)
Fair Value as of December 31, 2017	$	14		$	2		$	1		$	140		$	4		$	161

[1]"Other" includes U.S. Treasuries, Other fixed income and CMBS investments.

Company Contributions

Company Contributions

Employer Contributions	Pension Benefits			Other Postretirement Benefits
2018	$	103		$	—
2017	$	281		$	—

Amounts of Benefits Expected to be Paid over the next Ten Years from Pension and other Postretirement Plans

Amounts of Benefits Expected to be Paid over the next Ten Years from Pension and other Postretirement Plans as of December 31, 2018

	Pension Benefits			Other Postretirement Benefits
2019	$	239		$	27
2020	239			24
2021	246			22
2022	251			20
2023	250			18
2024 - 2028	1,263			67
Total	$	2,488		$	178

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