Postretirement Benefit Plans (Details Textual) shares in Thousands, £ in Millions	1 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2022 GBP (£)	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Number of years eligible employees can receive transition credits			5 years
Number of shares held by employees in Employee Stock Ownership Plan | shares			231	245
Charge resulting from curtailment or settlement recorded			$ 0	$ 137,000,000	$ 0
Prior service credit			0	(3,000,000)
Accumulated benefit obligation			551,000,000	460,000,000
Estimated pension plan contributions during the next fiscal quarter			8,000,000
Net gain (loss)			$ (35,000,000)	101,000,000	51,000,000
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets			5.84%
Fair value of plan assets			$ 296,000,000	246,000,000
U.K. pension settlement expense			0	(140,000,000)	0
Pension
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Prior service credit			2,000,000	1,000,000
Employer Contribution to defined benefit Plan			25,000,000
Fair value of plan assets			296,000,000	246,000,000
Other Benefits
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Prior service credit			(2,000,000)	(4,000,000)
Net actuarial losses, before tax			0	(1,000,000)	(2,000,000)
Prior service credit, before tax			(2,000,000)	(2,000,000)	(2,000,000)
Employer Contribution to defined benefit Plan				19,000,000
Net gain (loss)			(1,000,000)	9,000,000	0
Fair value of plan assets			$ 0	0
Minimum
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Employer matching contribution			3.00%
Estimated pension plan contributions during next fiscal year			$ 31,000,000
Maximum
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Employer matching contribution			7.00%
Estimated pension plan contributions during next fiscal year			$ 37,000,000
Cash and cash equivalents
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Fair value of plan assets			7,000,000	2,000,000
International defined benefit pension plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
Charge resulting from curtailment or settlement recorded			0	137,000,000	0
Net actuarial losses, before tax			2,000,000	(10,000,000)	(17,000,000)
Employer Contribution to defined benefit Plan			17,000,000	16,000,000
Net gain (loss)			$ (31,000,000)	$ 95,000,000	$ 51,000,000
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets			5.85%	2.79%	2.60%
Discount rate			3.55%	4.13%	1.55%
Fair value of plan assets			$ 210,000,000	$ 166,000,000	$ 571,000,000
Discount rate			4.13%	1.55%	1.06%
UNITED KINGDOM
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block
U.K. pension settlement expense	$ 140,000,000	£ 123