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Employee Benefit Plans - Textual (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2019
U.S.
Employee Benefit Plans (Textual) [Abstract]
Company contributions	$ 108
Expected company contributions	205
Int'l (Pension Benefits) [Member]
Employee Benefit Plans (Textual) [Abstract]
Company contributions	77
Expected company contributions	$ 185
Int'l (Pension Benefits) [Member] | Qualified Plan [Member] | Scenario Plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year 1		$ 285

X

- Definition

Amount of contributions expected to be received by defined benefit plan from employer in fiscal year under certain asset disposition scnearios.

+ References

No definition available.

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Employee benefit plans.

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

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