Retirement Plans and Other Retiree Benefits - Allocation of Plan Assets and Level of Valuation Input, by Major Asset Category (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Percent of fixed income assets invested in US treasury or agency securities	30.00%	40.00%
Minimum
Defined Benefit Plan Disclosure [Line Items]
Investment redemption notice period	0 months
Maximum
Defined Benefit Plan Disclosure [Line Items]
Investment redemption notice period	3 months
United States | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,360	$ 1,363	$ 1,834
United States | Pension Plans | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	936	744
United States | Pension Plans | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	454	621
United States | Pension Plans | Cash and cash equivalents | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	206	30
United States | Pension Plans | U.S. common stocks | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
United States | Pension Plans | International common stocks | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
United States | Pension Plans | Pooled funds | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20	38
United States | Pension Plans | Fixed income securities | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	710	676
United States | Pension Plans | Guaranteed investment contracts | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
United States | Pension Plans | Domestic, developed and emerging markets equity funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	315	260
United States | Pension Plans | Fixed income funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	99	337
United States | Pension Plans | Hedge funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
United States | Pension Plans | Multi-Asset funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40	24
United States | Pension Plans | Real estate funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
United States | Pension Plans | Other assets and liabilities, net
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	(30)	(2)
International | Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	566	516	$ 723
International | Pension Plans | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	254	214
International | Pension Plans | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	312	302
International | Pension Plans | Cash and cash equivalents | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14	8
International | Pension Plans | U.S. common stocks | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2	2
International | Pension Plans | International common stocks | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20	13
International | Pension Plans | Pooled funds | Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	113	95
International | Pension Plans | Fixed income securities | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	71	62
International | Pension Plans | Guaranteed investment contracts | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	34	34
International | Pension Plans | Domestic, developed and emerging markets equity funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	55	61
International | Pension Plans | Fixed income funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	219	202
International | Pension Plans | Hedge funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7	7
International | Pension Plans | Multi-Asset funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1	1
International | Pension Plans | Real estate funds | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	30	31
International | Pension Plans | Other assets and liabilities, net
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0