Supplemental Financial Information (Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Additional Financial Information Disclosure [Abstract]
Cash paid for interest	$ 765	$ 790
Cash paid for income taxes	298	586
Noncash additions to operating lease assets	$ 124	$ 357

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

+ References

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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

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-Publisher FASB
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- Definition

Additional Financial Information Disclosure [Abstract]

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No definition available.

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