Finance Lease Obligations, Current

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Finance Lease Obligations, Noncurrent

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Finance Leases, Future Minimum Payments Due

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Finance Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]

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Finance Leases, Future Minimum Payments Due In Five Years

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Finance Leases, Future Minimum Payments Due In Four Years

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Finance Leases, Future Minimum Payments Due In Three Years

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Finance Leases, Future Minimum Payments Due In Two Years

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Finance Leases, Future Minimum Payments Due, Next Twelve Months

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Finance Leases, Future Minimum Payments Due Thereafter

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Long-Term Debt, Including Interest

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Long-Term Debt, Maturities, Repayments Of Principal And Interest In Year Five

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Long-Term Debt, Maturities, Repayments Of Principal And Interest In Year Four

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Long-Term Debt, Maturities, Repayments Of Principal And Interest In Year Two

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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Amount of minimum lease payments for capital leases.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of contractual obligation due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of contractual obligation due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing after the fifth fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Minimum amount of other commitment maturing in the fifth fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Amount of unrecognized tax benefits.

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Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Name:	us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the fixed and determinable portion of the unrecorded unconditional purchase obligation maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

Name:	us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Commitments and Contingencies - Principal Contractual Commitments Excluding Open Orders (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Debt principal and interest
Year Ended December 31, 2019	$ 2,277
Year Ended December 31, 2020	2,161
Year Ended December 31, 2021	1,861
Year Ended December 31, 2022	2,078
Year Ended December 31, 2023	1,781
Thereafter	30,013
Total	40,171
Capital lease obligations, including interest
Year Ended December 31, 2019	7,807
Year Ended December 31, 2020	5,742
Year Ended December 31, 2021	2,725
Year Ended December 31, 2022	704
Year Ended December 31, 2023	473
Thereafter	501
Total	17,952
Current capital lease obligations	7,720	$ 5,800
Noncurrent capital lease obligations	9,650	8,438
Finance lease obligations, including interest
Year Ended December 31, 2019	628
Year Ended December 31, 2020	640
Year Ended December 31, 2021	652
Year Ended December 31, 2022	664
Year Ended December 31, 2023	675
Thereafter	5,117
Total	8,376
Current finance lease obligations	411	282
Noncurrent finance lease obligations	6,642	4,745
Operating leases
Year Ended December 31, 2019	3,127
Year Ended December 31, 2020	3,070
Year Ended December 31, 2021	2,775
Year Ended December 31, 2022	2,473
Year Ended December 31, 2023	2,195
Thereafter	13,026
Total	26,666
Unconditional purchase obligations
Year Ended December 31, 2019	3,523
Year Ended December 31, 2020	4,103
Year Ended December 31, 2021	3,291
Year Ended December 31, 2022	3,098
Year Ended December 31, 2023	2,974
Thereafter	5,204
Total	22,193
Other commitments
Year Ended December 31, 2019	2,618
Year Ended December 31, 2020	1,455
Year Ended December 31, 2021	1,056
Year Ended December 31, 2022	843
Year Ended December 31, 2023	808
Thereafter	8,875
Total	15,655
Accrued tax contingencies	3,414	$ 2,309	$ 1,710	$ 1,181
Total commitments
Year Ended December 31, 2019	19,980
Year Ended December 31, 2020	17,171
Year Ended December 31, 2021	12,360
Year Ended December 31, 2022	9,860
Year Ended December 31, 2023	8,906
Thereafter	62,736
Total	$ 131,013